MPEP § 1451 — Divisional Reissue Applications; Continuation Reissue Applications Where the Parent is Pending (Annotated Rules)

§1451 Divisional Reissue Applications; Continuation Reissue Applications Where the Parent is Pending

USPTO MPEP version: BlueIron's Update: 2025-12-31

This page consolidates and annotates all enforceable requirements under MPEP § 1451, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

Divisional Reissue Applications; Continuation Reissue Applications Where the Parent is Pending

This section addresses Divisional Reissue Applications; Continuation Reissue Applications Where the Parent is Pending. Primary authority: 35 U.S.C. 251, 35 U.S.C. 111(a), and 35 U.S.C. 120. Contains: 4 requirements, 1 prohibition, 7 guidance statements, and 1 other statement.

Key Rules

Topic

Reissue Oath/Declaration Content

25 rules
StatutoryInformativeAlways
[mpep-1451-7f3c1742135d5d7b1c2b6fbf]
Oath/Declaration Must Differ from Parent’s
Note:
The reissue oath or declaration for a continuing application must be different from the parent's to indicate it is not merely a copy.

In general, an application which is a continuing application of a reissue application will be considered a Bauman application when there are no indicia on filing that a continuing reissue application is being filed. Indicia that a continuing reissue application is being filed are 1. A 37 CFR 1.175 reissue oath/declaration, which is not merely a copy of the parent’s reissue oath/declaration.

Jump to MPEP Source · 37 CFR 1.177Reissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-035f96131d4cb04cfd96e8ee]
Submission of New Oath/Declaration Indicates Correction of Error
Note:
The submission of a new oath or declaration in a divisional reissue application indicates that an error has been corrected, necessitating the rejection of claims under 35 U.S.C. 251 and requiring a new assignee consent.

Whenever a divisional reissue application is filed with a copy of the assignee consent from the parent reissue application, but with a newly executed reissue oath/declaration, the copy of the assignee consent from the parent reissue application should not be accepted. Submission of a new oath or declaration is indicative of correction of a different error. The copy of the assignee consent from the parent reissue application does not indicate that the assignee has consented to the addition of the new invention of the divisional reissue application to the original patent. In such circumstances, the Office of Patent Application Processing (OPAP) will accord the divisional reissue application a filing date, and the examiner should reject the claims under 35 U.S.C. 251 and require the submission of a new assignee consent. See MPEP § 1410.02.

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-72534884a2cbb54a8ea39f5c]
Copy of Oath/Declaration from Parent Acceptable in Divisional Reissue
Note:
A copy of the oath/declaration from the parent reissue application is acceptable in a divisional reissue, even if it may be improper under 35 U.S.C. 251 or 37 CFR 1.175.

Whenever a divisional reissue application is filed with a copy of the oath/declaration from the parent reissue application, the copy of the reissue oath/declaration in the divisional reissue application should be accepted by OPAP, because it is an oath/declaration, even though it may be improper under 35 U.S.C. 251 or 37 CFR 1.175.

Jump to MPEP Source · 37 CFR 1.175Reissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-80d6df4aba1fe0133e8da8ce]
Oath/Declaration for Continuing Reissue Must Comply with 37 CFR 1.175(f)(1)
Note:
Examiner must reject claims if the parent reissue application's oath or declaration does not meet 37 CFR 1.175(f)(1) requirements and require a new one.

If the copy of the oath or declaration from the parent reissue application does not comply with 37 CFR 1.175(f)(1), the examiner should reject the claims of the continuing (i.e., divisional or continuation) reissue application under 35 U.S.C. 251 as being based on a defective oath/declaration, and require a new oath/declaration. See MPEP § 1414, subsection II, item (D). In addition, the examiner should check to see if the error statement in the copy of the oath/declaration covers an error being corrected in the continuing reissue application.

Jump to MPEP Source · 37 CFR 1.175(f)(1)Reissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-0ab71f9139f3e234ec3cf5c4]
Check Oath/Declaration for Corrected Error in Continuing Reissue Application
Note:
The examiner must verify that the error statement in the copy of the oath or declaration covers any error being corrected in the continuing reissue application.

If the copy of the oath or declaration from the parent reissue application does not comply with 37 CFR 1.175(f)(1), the examiner should reject the claims of the continuing (i.e., divisional or continuation) reissue application under 35 U.S.C. 251 as being based on a defective oath/declaration, and require a new oath/declaration. See MPEP § 1414, subsection II, item (D). In addition, the examiner should check to see if the error statement in the copy of the oath/declaration covers an error being corrected in the continuing reissue application.

Jump to MPEP Source · 37 CFR 1.175(f)(1)Reissue Oath/Declaration ContentError Identification in OathReissue Oath or Declaration
StatutoryPermittedAlways
[mpep-1451-381e7a4f097551bd5a09d4ff]
Continuing Reissue Oath/Declaration Requirement
Note:
A continuing reissue application must use the inventor’s oath or declaration from its parent application if it replaces it.

Pursuant to pre-AIA 37 CFR 1.175(e), the requirement for the inventor’s oath or declaration for a continuing reissue application may be satisfied by a copy of the inventor’s oath or declaration from the earlier-filed reissue application only when the continuing reissue application replaces its parent reissue application.

Jump to MPEP Source · 37 CFR 1.175(e)Reissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-d4e5c0bccbcba4a5ff878749]
Oath/Declaration Must Comply with Pre-AIA 37 CFR 1.175(e)
Note:
Examiner must reject claims if the parent reissue application's oath or declaration does not meet pre-AIA 37 CFR 1.175(e) requirements and require a new one.

If the copy of the oath or declaration from the parent reissue application does not comply with pre-AIA 37 CFR 1.175(e), the examiner should reject the claims of the continuing reissue application under 35 U.S.C. 251 as being based on a defective oath/declaration and require a new oath/declaration. See MPEP § 1414, subsection II, item (D). In addition, the examiner should check to see if the error statement in the copy of the oath/declaration covers an error being corrected in the continuing reissue application.

Jump to MPEP Source · 37 CFR 1.175(e)Reissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-72ec710af0bc20e6c036a156]
Check Oath/Declaration for Error Statement Coverage
Note:
Examiner must verify if the error statement in the oath/declaration covers any corrections made in the continuing reissue application.

If the copy of the oath or declaration from the parent reissue application does not comply with pre-AIA 37 CFR 1.175(e), the examiner should reject the claims of the continuing reissue application under 35 U.S.C. 251 as being based on a defective oath/declaration and require a new oath/declaration. See MPEP § 1414, subsection II, item (D). In addition, the examiner should check to see if the error statement in the copy of the oath/declaration covers an error being corrected in the continuing reissue application.

Jump to MPEP Source · 37 CFR 1.175(e)Reissue Oath/Declaration ContentError Identification in OathReissue Oath or Declaration
StatutoryRecommendedAlways
[mpep-1451-8da8239b7ab45157e7bad383]
Oath/Declaration Must Identify Corrected Error in Continuing Reissue Application
Note:
The examiner must ensure the oath/declaration identifies any error being corrected by a divisional or continuation reissue application.

The examiner should check the copy of the oath/declaration to ensure that it identifies an error being corrected by the continuing (i.e., divisional or continuation) reissue application. For divisional reissue applications, the copy of the oath/declaration from the parent reissue application may or may not cover the error being corrected by the divisional reissue application because the divisional reissue application is (by definition) directed to a new invention. If the copy of the oath/declaration does not cover an error being corrected by the continuing reissue application, the examiner should reject the claims of the continuing reissue application under 35 U.S.C. 251 as being based on an oath/declaration that does not identify an error being corrected by the continuing reissue application, and require a new oath/declaration and a new assignee consent if it does not cover the error being corrected in the continuing reissue application. See MPEP §§ 1414 and 1410.02.

Jump to MPEP SourceReissue Oath/Declaration ContentError Identification in OathReissue Application Filing
StatutoryProhibitedAlways
[mpep-1451-e720fb45c80b21cebb2d9d6a]
Oath/Declaration May Not Cover All Errors in Divisional Reissue
Note:
Examiners must ensure the oath/declaration from the parent reissue application covers errors corrected by a divisional reissue, as it may not always do so.

The examiner should check the copy of the oath/declaration to ensure that it identifies an error being corrected by the continuing (i.e., divisional or continuation) reissue application. For divisional reissue applications, the copy of the oath/declaration from the parent reissue application may or may not cover the error being corrected by the divisional reissue application because the divisional reissue application is (by definition) directed to a new invention. If the copy of the oath/declaration does not cover an error being corrected by the continuing reissue application, the examiner should reject the claims of the continuing reissue application under 35 U.S.C. 251 as being based on an oath/declaration that does not identify an error being corrected by the continuing reissue application, and require a new oath/declaration and a new assignee consent if it does not cover the error being corrected in the continuing reissue application. See MPEP §§ 1414 and 1410.02.

Jump to MPEP SourceReissue Oath/Declaration ContentError Identification in OathReissue Application Filing
StatutoryRequiredAlways
[mpep-1451-6074f23f75cf0fb859d7c637]
Oath/Declaration Must Identify Correctable Error
Note:
The reissue oath/declaration must identify a specific error being corrected, not just the remarks in the application.

For applications filed on or after September 16, 2012, a new oath/declaration is required for identification of the error if the copy of the oath/declaration from the parent reissue application does not cover an error being corrected in the continuing reissue application. Identification of the error in the remarks accompanying the reissue application or a reply is not sufficient, because 37 CFR 1.175(f)(2) states that “[i]f all errors identified in the inventor’s oath or declaration from the earlier-filed reissue application are no longer being relied upon as the basis for reissue, the applicant must identify an error being relied upon as the basis for reissue,” and in this instance the initial oath/declaration (the copy filed) never stated a proper “error.” In other words, 37 CFR 1.175(f)(2) allows for the identification of the reissuable error in the remarks only when a proper reissuable error was previously entered into the application. If the copy of the reissue oath/declaration from the parent reissue application does in fact cover an error being corrected in the continuing reissue application, no such rejection should be made.

Jump to MPEP Source · 37 CFR 1.175(f)(2)Reissue Oath/Declaration ContentAssignee as Applicant SignatureApplicant and Assignee Filing Under AIA
StatutoryRecommendedAlways
[mpep-1451-85f68662772ddd82775dbf0c]
Oath/Declaration Must Cover Corrected Error
Note:
The reissue oath/declaration from the parent application must cover an error being corrected in the continuing reissue application to avoid rejection.

For applications filed on or after September 16, 2012, a new oath/declaration is required for identification of the error if the copy of the oath/declaration from the parent reissue application does not cover an error being corrected in the continuing reissue application. Identification of the error in the remarks accompanying the reissue application or a reply is not sufficient, because 37 CFR 1.175(f)(2) states that “[i]f all errors identified in the inventor’s oath or declaration from the earlier-filed reissue application are no longer being relied upon as the basis for reissue, the applicant must identify an error being relied upon as the basis for reissue,” and in this instance the initial oath/declaration (the copy filed) never stated a proper “error.” In other words, 37 CFR 1.175(f)(2) allows for the identification of the reissuable error in the remarks only when a proper reissuable error was previously entered into the application. If the copy of the reissue oath/declaration from the parent reissue application does in fact cover an error being corrected in the continuing reissue application, no such rejection should be made.

Jump to MPEP Source · 37 CFR 1.175(f)(2)Reissue Oath/Declaration ContentError Identification in OathReissue Oath or Declaration
StatutoryRecommendedAlways
[mpep-1451-7b8e1f104d511b8209a1ffa4]
Divisional Reissues Involving Multiple Files Are Rare
Note:
This rule states that divisional reissues usually involve two files but can occasionally include up to five in rare cases.

Situations yielding divisional reissues occur infrequently and usually involve only two such files. It should be noted, however, that in rare instances in the past, there have been more than two (and as many as five) divisional reissues of a patent. For treatment of a plurality of divisional reissue applications resulting from a requirement to restrict to distinct inventions or a requirement to elect species, see MPEP § 1450.

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-e5dc09437023713ad4ff1c41]
Continuation Reissue Not for Distinct Parts
Note:
A continuation reissue application of a parent reissue application does not meet the requirement for distinct and separate parts of the patented thing as per 35 U.S.C. 251.

A continuation reissue application of a parent reissue application is not ordinarily filed “for distinct and separate parts of the thing patented” as called for in the second paragraph of 35 U.S.C. 251. The decision of In re Graff, 111 F.3d 874, 42 USPQ2d 1471 (Fed. Cir. 1997) interprets 35 U.S.C. 251 to permit multiple reissue patents to issue even where the multiple reissue patents are not for “distinct and separate parts of the thing patented.” The court stated:

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-7cf2bc7dd19f4c661c78425b]
Continuation Reissue Application Permitted Despite Pending Parent
Note:
A continuation reissue application can be prosecuted even if the parent reissue application is still pending, as long as it complies with the rules for reissue.

In re Graff, 111 F.3d at 877, 42 USPQ2d at 1473. Accordingly, prosecution of a continuation reissue application of a parent reissue application will be permitted (despite the existence of the pending parent reissue application) where the continuation reissue application complies with the rules for reissue.

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-0e358f2092a8fbc132a6ddc3]
All Claims Must Be Presented In Both Applications
Note:
All claims of the patent must be included in both the parent and continuation reissue applications, but not examined in both.

As is true for the case of multiple divisional reissue applications, all of the claims of the patent to be reissued must be presented in both the parent reissue application and the continuation reissue application in some form, i.e., as amended, as unamended, or as canceled. The same claim of the patent cannot, however, be presented for examination in both the parent reissue application and the continuation reissue application, as a pending claim, in either its original or amended versions. See the discussion in subsection I above for treatment of this situation. Further, any added claims must be numbered beginning with the next highest number following the original patent claims.

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryRequiredAlways
[mpep-1451-980c07a5474cb49c637463c1]
Added Claims Must Start with Next Number
Note:
Any new claims must be numbered starting from the next highest number after the original patent claims.

As is true for the case of multiple divisional reissue applications, all of the claims of the patent to be reissued must be presented in both the parent reissue application and the continuation reissue application in some form, i.e., as amended, as unamended, or as canceled. The same claim of the patent cannot, however, be presented for examination in both the parent reissue application and the continuation reissue application, as a pending claim, in either its original or amended versions. See the discussion in subsection I above for treatment of this situation. Further, any added claims must be numbered beginning with the next highest number following the original patent claims.

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Patent PracticeReissue Oath or Declaration
StatutoryInformativeAlways
[mpep-1451-669099965d81807fa3a7e06f]
New Oath/Declaration Indicates Different Error Correction
Note:
Submission of a new oath or declaration signifies the correction of a different error in a continuation reissue application.

Generally, where a continuation reissue application is filed with a copy of the assignee consent from the parent reissue application but with a newly executed reissue oath/declaration, the copy of the assignee consent from the parent reissue application is not acceptable. A copy of the assignee consent is only acceptable if the continuation reissue application corrects an error for which consent was made. Submission of a new oath or declaration is indicative of correction of a different error. Under such circumstances, OPAP will accord the continuation reissue application a filing date, and the examiner should reject the claims under 35 U.S.C. 251 and require a new consent. See MPEP § 1410.02.

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-193dfef9870a5609e5a4a609]
Copy of Parent Oath Acceptable in Continuation
Note:
A copy of the oath/declaration from the parent reissue application can be accepted in a continuation reissue application, even if it may be improper under 35 U.S.C. 251 or 37 CFR 1.175.

Whenever a continuation reissue application is filed with a copy of the oath/declaration from the parent reissue application, the copy of the reissue oath/declaration in the continuation reissue application should be accepted by OPAP because it is an oath/declaration, even though it may be improper under 35 U.S.C. 251 or 37 CFR 1.175. For continuation reissue applications filed on or after September 16, 2012, in the remarks accompanying the continuation reissue application, the applicant should explain why the filing of the copy of the oath/declaration from the parent reissue application is sufficient. The examiner should check the copy of the oath/declaration and any remarks pertaining to the error to ensure that an error is correctly identified by the continuation reissue. See MPEP § 1414 for additional information.

Jump to MPEP Source · 37 CFR 1.175Reissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-7ee87333e82b954c5482793a]
Oath/Declaration for Continuation Reissue Must Be Correctly Identified
Note:
The examiner must verify the copy of the oath/declaration and any remarks in a continuation reissue application to ensure errors are accurately identified.

Whenever a continuation reissue application is filed with a copy of the oath/declaration from the parent reissue application, the copy of the reissue oath/declaration in the continuation reissue application should be accepted by OPAP because it is an oath/declaration, even though it may be improper under 35 U.S.C. 251 or 37 CFR 1.175. For continuation reissue applications filed on or after September 16, 2012, in the remarks accompanying the continuation reissue application, the applicant should explain why the filing of the copy of the oath/declaration from the parent reissue application is sufficient. The examiner should check the copy of the oath/declaration and any remarks pertaining to the error to ensure that an error is correctly identified by the continuation reissue. See MPEP § 1414 for additional information.

Jump to MPEP Source · 37 CFR 1.175Reissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-c57be9c8ac0ff0b869e47c87]
Two Applications Could Have Been One
Note:
In Berg’s case, the two applications could have been filed as one, making it irrelevant who controlled the rates of prosecution.

A nonstatutory double patenting rejection should be considered by the examiner, with the requirement of a terminal disclaimer in each pending application. In re Berg, 140 F.3d 1428, 1435, 46 USPQ2d 1226, 1232 (Fed. Cir. 1998) (“The two-way exception can only apply when the applicant could not avoid separate filings, and even then, only if the PTO controlled the rates of prosecution to cause the later filed species claims to issue before the claims for a genus in an earlier application…In Berg’s case, the two applications could have been filed as one, so it is irrelevant to our disposition who actually controlled the respective rates of prosecution.”).

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationAIA vs Pre-AIA Practice
StatutoryInformativeAlways
[mpep-1451-adc53f4a359ee79b4d3db77a]
Copy of Parent Oath/Declaration in Continuation Reissue
Note:
The continuation reissue application must include a copy of the parent reissue declaration that corrects an error in the original independent claim by adding D to the broad claim.

The parent reissue application’s supplemental declaration or remarks (if the parent reissue application was filed on or after September 16, 2012) describes the addition of D to the ABCE and ABCF combinations, correcting an error in the original dependent claims. The copy of the original reissue declaration from the parent reissue application filed in the continuation reissue application describes the addition of D to the broad claim, correcting an error in the original independent claim. A copy of the original reissue declaration is filed in the continuation reissue application and the applicant explains, in the remarks section, why the filing of the copy of the oath/declaration from the parent reissue application is sufficient. The filing of the continuation reissue application is permitted because the applicant is free to split the correction of an error as to different claims into different reissue applications, where one is a continuing application of another. See In re Graff, 111 F.3d at 877, 42 USPQ2d at 1473, where the Federal Circuit stated that 35 U.S.C. 251 places “no greater burden on Mr. Graff’s continuation reissue application than upon a continuation of an original application…”

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryPermittedAlways
[mpep-1451-75bded49019f4ff6c8b450e6]
Splitting Correction into Different Reissue Applications Permitted
Note:
The applicant can split the correction of errors in different claims across multiple reissue applications, where one is a continuation of another.

The parent reissue application’s supplemental declaration or remarks (if the parent reissue application was filed on or after September 16, 2012) describes the addition of D to the ABCE and ABCF combinations, correcting an error in the original dependent claims. The copy of the original reissue declaration from the parent reissue application filed in the continuation reissue application describes the addition of D to the broad claim, correcting an error in the original independent claim. A copy of the original reissue declaration is filed in the continuation reissue application and the applicant explains, in the remarks section, why the filing of the copy of the oath/declaration from the parent reissue application is sufficient. The filing of the continuation reissue application is permitted because the applicant is free to split the correction of an error as to different claims into different reissue applications, where one is a continuing application of another. See In re Graff, 111 F.3d at 877, 42 USPQ2d at 1473, where the Federal Circuit stated that 35 U.S.C. 251 places “no greater burden on Mr. Graff’s continuation reissue application than upon a continuation of an original application…”

Jump to MPEP SourceReissue Oath/Declaration ContentAssignee as Applicant SignatureApplicant and Assignee Filing Under AIA
StatutoryRecommendedAlways
[mpep-1451-29559f4c196a027e3e72f285]
Terminal Disclaimer Required for Nonstatutory Double Patenting
Note:
Examiner must consider nonstatutory double patenting and require a terminal disclaimer in each pending application.

Again, a nonstatutory double patenting rejection should be considered by the examiner, with the requirement of a terminal disclaimer in each pending application. See In re Berg, 140 F.3d at 1437, 46 USPQ2d at 1233.

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-947c356a7bb3b3e29bdfec75]
Requirement for Terminal Disclaimer in Each Pending Application
Note:
A nonstatutory double patenting rejection should be considered by the examiner and a terminal disclaimer must be provided in each pending application.

Again, a nonstatutory double patenting rejection should be considered by the examiner, with the requirement of a terminal disclaimer in each pending application. See In re Berg, 140 F.3d at 1437, 46 USPQ2d at 1233.

Jump to MPEP SourceReissue Oath/Declaration ContentReissue Oath or DeclarationReissue Patent Practice
Topic

Reissue Patent Practice

18 rules
StatutoryPermittedAlways
[mpep-1451-9c770fa0bdad51a5d9dd6de2]
Multiple Reissue Applications Can Be Merged Into One
Note:
The Office may combine multiple reissue applications into a single application if they fail to correct an error in the original patent but are otherwise ready for allowance.

(c) If any one of the several reissue applications by itself fails to correct an error in the original patent as required by 35 U.S.C. 251 but is otherwise in condition for allowance, the Office may suspend action in the allowable application until all issues are resolved as to at least one of the remaining reissue applications. The Office may also merge two or more of the multiple reissue applications into a single reissue application. No reissue application containing only unamended patent claims and not correcting an error in the original patent will be passed to issue by itself.

Jump to MPEP Source · 37 CFR 1.177Reissue Patent PracticeOriginal Patent Requirement (Same Invention)Reissue Claim Requirements
StatutoryInformativeAlways
[mpep-1451-8296458c4d9abc6e676c2150]
Continuation Reissue Application for Existing Patent
Note:
This application seeks to reissue an existing U.S. patent by continuing its reissue process.

Example 9: This is an application for reissue of U.S. Patent No. 99,234,567. This application claims benefit under 35 U.S.C. 120 as a continuation of application no. 99/123,456, which is an application for reissue of U.S. Patent No. 99,234,567.

Jump to MPEP Source · 37 CFR 1.177Reissue Patent PracticeDomestic Benefit Claims (35 U.S.C. 120/121)Priority and Benefit Claims
StatutoryRequiredAlways
[mpep-1451-529286aab62720aa9058897a]
Claims of Multiple Reissue Applications Must Not Be Independent and Distinct
Note:
The claims in multiple reissue applications do not need to be independent and distinct; if they are not, the examiner must apply double patenting rejections.

In addition, applicant may initiate a division of the claims by filing more than one reissue application in accordance with 37 CFR 1.177. The multiple reissue applications which are filed may contain different groups of claims from among the original patent claims, or some of the reissue applications may contain newly added groups (not present in the original patent). There is no requirement that the claims of the multiple reissue applications be independent and distinct from one another; if they are not independent and distinct from one another, the examiner must apply the appropriate double patenting rejections.

Jump to MPEP Source · 37 CFR 1.177Reissue Patent PracticeReissue Application FilingReissue Claim Requirements
StatutoryProhibitedAlways
[mpep-1451-2dd9997aad221d498bce4e1c]
Claims Must Be Numbered Sequentially
Note:
All added claims in reissue applications must start with the next highest number after the last patent claim. Duplicate presentation of the same claim in different divisional reissue applications is prohibited.

Pursuant to 37 CFR 1.177(b) all of the claims of the patent to be reissued must be presented in each reissue application in some form, i.e., as amended, as unamended or as canceled. Further, any added claims must be numbered beginning with the next highest number following the last patent claim. It is noted that the same claim of the patent cannot be presented for examination in more than one of the divisional reissue applications, as a pending claim, in either its original or amended versions. If a patent claim is presented in one of the divisional reissue applications of a reissue application "family," as a pending claim, then that patent claim must be presented as a canceled claim in all the other reissue applications of that family. Once a claim in the patent has been reissued, it does not exist in the original patent; thus, it cannot be reissued from the original patent in another reissue application. If the same claim of the patent, e.g., patent claim 1 is presented for examination in more than one of the reissue applications, in different amended versions, the following rejections should be made in the reissue applications with that patent claim:

Jump to MPEP Source · 37 CFR 1.177(b)Reissue Patent PracticeReissue Application FilingReissue Claim Requirements
StatutoryRecommendedAlways
[mpep-1451-e5ace9651af9501709b15de8]
Same Patent Claim Cannot Be Examined in Multiple Reissue Applications
Note:
If the same patent claim is presented for examination in more than one reissue application with different amended versions, it must be rejected.

Pursuant to 37 CFR 1.177(b) all of the claims of the patent to be reissued must be presented in each reissue application in some form, i.e., as amended, as unamended or as canceled. Further, any added claims must be numbered beginning with the next highest number following the last patent claim. It is noted that the same claim of the patent cannot be presented for examination in more than one of the divisional reissue applications, as a pending claim, in either its original or amended versions. If a patent claim is presented in one of the divisional reissue applications of a reissue application "family," as a pending claim, then that patent claim must be presented as a canceled claim in all the other reissue applications of that family. Once a claim in the patent has been reissued, it does not exist in the original patent; thus, it cannot be reissued from the original patent in another reissue application. If the same claim of the patent, e.g., patent claim 1 is presented for examination in more than one of the reissue applications, in different amended versions, the following rejections should be made in the reissue applications with that patent claim:

Jump to MPEP Source · 37 CFR 1.177(b)Reissue Patent PracticeReissue Application FilingReissue Claim Requirements
StatutoryRecommendedAlways
[mpep-1451-8cba5851e177a39ac2916296]
Procedure for Reissue Applications Required
Note:
The reissue applicant must follow a specific procedure similar to the example provided.

The reissue applicant should then be advised to follow a procedure similar to the following example:

Jump to MPEP SourceReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-47fb12e30977cbafd253e6e9]
Treatment of Multiple Divisional Reissues
Note:
Guidelines for handling more than two divisional reissue applications resulting from a requirement to restrict inventions or elect species.

Situations yielding divisional reissues occur infrequently and usually involve only two such files. It should be noted, however, that in rare instances in the past, there have been more than two (and as many as five) divisional reissues of a patent. For treatment of a plurality of divisional reissue applications resulting from a requirement to restrict to distinct inventions or a requirement to elect species, see MPEP § 1450.

Jump to MPEP SourceReissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryInformativeAlways
[mpep-1451-5601e35c05d7c47cfa9c16a9]
Continuation Reissue Not for Distinct Parts of Invention
Note:
A continuation reissue application cannot be filed for distinct and separate parts of the patented invention as required by 35 U.S.C. 251.

A continuation reissue application of a parent reissue application is not ordinarily filed “for distinct and separate parts of the thing patented” as called for in the second paragraph of 35 U.S.C. 251. The decision of In re Graff, 111 F.3d 874, 42 USPQ2d 1471 (Fed. Cir. 1997) interprets 35 U.S.C. 251 to permit multiple reissue patents to issue even where the multiple reissue patents are not for “distinct and separate parts of the thing patented.” The court stated:

Jump to MPEP SourceReissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryInformativeAlways
[mpep-1451-ba604c82fcd077da81460580]
Multiple Reissue Patents Not Restricted to Distinct Parts
Note:
The court permits multiple reissue patents even if they are not for distinct and separate parts of the patented invention.

A continuation reissue application of a parent reissue application is not ordinarily filed “for distinct and separate parts of the thing patented” as called for in the second paragraph of 35 U.S.C. 251. The decision of In re Graff, 111 F.3d 874, 42 USPQ2d 1471 (Fed. Cir. 1997) interprets 35 U.S.C. 251 to permit multiple reissue patents to issue even where the multiple reissue patents are not for “distinct and separate parts of the thing patented.” The court stated:

Jump to MPEP SourceReissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryInformativeAlways
[mpep-1451-498cda43c3708d57a5f04428]
No Greater Burden on Continuation Reissue
Note:
Section 251[2] ensures that continuation reissue applications are not subject to a greater burden than original application continuations.

Section 251[2] is plainly intended as enabling, not as limiting. Section 251[2] has the effect of assuring that a different burden is not placed on divisional or continuation reissue applications, compared with divisions and continuations of original applications, by codifying the Supreme Court decision [The Corn-Planter Patent, 90 U.S. 181, 227-28 (1874)] which recognized that more than one patent can result from a reissue proceeding. Thus § 251[2] places no greater burden on Mr. Graff’s continuation reissue application than upon a continuation of an original application; § 251[2] neither overrides, enlarges, nor limits the statement in § 251[3] that the provisions of Title 35 apply to reissues.

Jump to MPEP Source · 37 CFR 251Reissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryPermittedAlways
[mpep-1451-c53582f7eac3505170bcebd0]
No Greater Burden on Continuation Reissue Applications
Note:
Section 251[2] ensures that continuation reissue applications are not burdened more than original application continuations, aligning with Supreme Court precedent.

Section 251[2] is plainly intended as enabling, not as limiting. Section 251[2] has the effect of assuring that a different burden is not placed on divisional or continuation reissue applications, compared with divisions and continuations of original applications, by codifying the Supreme Court decision [The Corn-Planter Patent, 90 U.S. 181, 227-28 (1874)] which recognized that more than one patent can result from a reissue proceeding. Thus § 251[2] places no greater burden on Mr. Graff’s continuation reissue application than upon a continuation of an original application; § 251[2] neither overrides, enlarges, nor limits the statement in § 251[3] that the provisions of Title 35 apply to reissues.

Jump to MPEP Source · 37 CFR 251Reissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryPermittedAlways
[mpep-1451-64186e254ea00a3951223e11]
Continuation Reissue Allowed Despite Pending Parent
Note:
A continuation reissue application can be prosecuted even if the parent reissue application is pending, provided it meets reissue rules.

In re Graff, 111 F.3d at 877, 42 USPQ2d at 1473. Accordingly, prosecution of a continuation reissue application of a parent reissue application will be permitted (despite the existence of the pending parent reissue application) where the continuation reissue application complies with the rules for reissue.

Jump to MPEP SourceReissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryRequiredAlways
[mpep-1451-0dc9e731211e9f47cedd5d19]
All Claims Must Be Presented In Both Applications
Note:
All claims of the patent to be reissued must appear in both the parent and continuation reissue applications, either amended, unamended, or canceled, but not examined in both.

As is true for the case of multiple divisional reissue applications, all of the claims of the patent to be reissued must be presented in both the parent reissue application and the continuation reissue application in some form, i.e., as amended, as unamended, or as canceled. The same claim of the patent cannot, however, be presented for examination in both the parent reissue application and the continuation reissue application, as a pending claim, in either its original or amended versions. See the discussion in subsection I above for treatment of this situation. Further, any added claims must be numbered beginning with the next highest number following the original patent claims.

Jump to MPEP SourceReissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryProhibitedAlways
[mpep-1451-58c0082f8f39902f29629c19]
Same Claim Cannot Be Presented Twice In Reissue Applications
Note:
A claim from the original patent cannot be included in both the parent and continuation reissue applications, either in its original or amended form.

As is true for the case of multiple divisional reissue applications, all of the claims of the patent to be reissued must be presented in both the parent reissue application and the continuation reissue application in some form, i.e., as amended, as unamended, or as canceled. The same claim of the patent cannot, however, be presented for examination in both the parent reissue application and the continuation reissue application, as a pending claim, in either its original or amended versions. See the discussion in subsection I above for treatment of this situation. Further, any added claims must be numbered beginning with the next highest number following the original patent claims.

Jump to MPEP SourceReissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryRequiredAlways
[mpep-1451-6df798da1d7ee62e8e6055ea]
Parent Reissue Must Cross-Reference Continuation
Note:
The parent reissue patent must include a cross-reference to the continuation reissue application at the time of its allowance by certificate of correction.

If the parent reissue application issues without any cross reference to the continuation reissue application, amendment of the parent reissue patent to include a cross-reference to the continuation reissue application must be effected at the time of allowance of the continuation reissue application by certificate of correction. See the discussion above in subsection I under the heading “Divisional Reissue Applications” as to how the certificate of correction is to be provided.

Jump to MPEP SourceReissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryInformativeAlways
[mpep-1451-6680054cd1e98a319ff101db]
Cross-Reference to Continuation Reissue Required at Allowance
Note:
A certificate of correction must be used to add a cross-reference to the continuation reissue application when the parent reissue issues without such a reference.

If the parent reissue application issues without any cross reference to the continuation reissue application, amendment of the parent reissue patent to include a cross-reference to the continuation reissue application must be effected at the time of allowance of the continuation reissue application by certificate of correction. See the discussion above in subsection I under the heading “Divisional Reissue Applications” as to how the certificate of correction is to be provided.

Jump to MPEP SourceReissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryRecommendedAlways
[mpep-1451-6748e3252c00274caefe8886]
Reference to Certificate of Correction Request
Note:
Examiner must reference in pending continuation reissue application that a certificate of correction request was made in the first reissue patent.

Again, the examiner should make reference in the pending continuation reissue application to the fact that an actual request for a certificate of correction has been generated in the first reissue patent pursuant to 37 CFR 1.177(a), e.g., by an entry in the search notes or in an examiner’s amendment.

Jump to MPEP Source · 37 CFR 1.177(a)Reissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
StatutoryInformativeAlways
[mpep-1451-e70ab6d9af610771e9c0d7d0]
Continuation Reissue Applications May Correct Errors Separately
Note:
Permits splitting the correction of an error in claims into separate reissue applications, with no greater burden than a continuation of an original application.

The parent reissue application’s supplemental declaration or remarks (if the parent reissue application was filed on or after September 16, 2012) describes the addition of D to the ABCE and ABCF combinations, correcting an error in the original dependent claims. The copy of the original reissue declaration from the parent reissue application filed in the continuation reissue application describes the addition of D to the broad claim, correcting an error in the original independent claim. A copy of the original reissue declaration is filed in the continuation reissue application and the applicant explains, in the remarks section, why the filing of the copy of the oath/declaration from the parent reissue application is sufficient. The filing of the continuation reissue application is permitted because the applicant is free to split the correction of an error as to different claims into different reissue applications, where one is a continuing application of another. See In re Graff, 111 F.3d at 877, 42 USPQ2d at 1473, where the Federal Circuit stated that 35 U.S.C. 251 places “no greater burden on Mr. Graff’s continuation reissue application than upon a continuation of an original application…”

Jump to MPEP SourceReissue Patent PracticeReissue Oath/Declaration ContentReissue Oath or Declaration
Topic

Reissue Application Filing

18 rules
StatutoryInformativeAlways
[mpep-1451-d48ef84529af7ef5386d8899]
Continuing Application of Reissued Patent Not a Reissue Itself
Note:
A continuing application filed from a reissue patent is not considered a reissue application itself.

Nonetheless, the mere fact that the application purports to be a continuation or divisional of a parent reissue application does not make it a reissue application itself, since it is possible to file a 35 U.S.C. 111(a) continuing application of a reissue application. See In re Bauman, 683 F.2d 405, 409, 214 USPQ 585, 589 (CCPA 1982) (a patentee may file a regular continuation of a reissue application that obtains the benefit of the reissue application's filing date).

Jump to MPEP Source · 37 CFR 1.177Reissue Application FilingReissue Patent Practice
StatutoryPermittedAlways
[mpep-1451-9d177a9e682e2a3fb9cc09c5]
Patentee May File Regular Continuation of Reissue Application
Note:
A patentee can file a regular continuation of a reissue application, obtaining the benefit of its filing date.

Nonetheless, the mere fact that the application purports to be a continuation or divisional of a parent reissue application does not make it a reissue application itself, since it is possible to file a 35 U.S.C. 111(a) continuing application of a reissue application. See In re Bauman, 683 F.2d 405, 409, 214 USPQ 585, 589 (CCPA 1982) (a patentee may file a regular continuation of a reissue application that obtains the benefit of the reissue application's filing date).

Jump to MPEP Source · 37 CFR 1.177Reissue Application FilingReissue Patent Practice
StatutoryRequiredAlways
[mpep-1451-0a602302bca684c074575ef9]
Identification Required for Continuation Reissue Applications
Note:
An identification must be made on filing that the application is a continuation reissue application, distinguishing it from other types of reissue applications.

If filing a continuation reissue application as opposed to a Bauman type continuation application, there must be an identification, on filing, that the application is a continuation reissue application. Likewise, there must be an identification, on filing, that the application is a divisional reissue application, as opposed to a divisional of a reissue application.

Jump to MPEP Source · 37 CFR 1.177Reissue Application FilingReissue Patent Practice
StatutoryRequiredAlways
[mpep-1451-fca5910deb60778b41cc143d]
Identification Required for Divisional Reissue Applications
Note:
An application must identify on filing whether it is a divisional reissue application or a divisional of a reissue application.

If filing a continuation reissue application as opposed to a Bauman type continuation application, there must be an identification, on filing, that the application is a continuation reissue application. Likewise, there must be an identification, on filing, that the application is a divisional reissue application, as opposed to a divisional of a reissue application.

Jump to MPEP Source · 37 CFR 1.177Reissue Application FilingReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-3efe8358196c82efca1b4c69]
Application Data Sheet Must Identify Continuation/Divisional and Reissue
Note:
The application data sheet must separately identify the application as a continuation or divisional of its parent reissue application and a reissue of the original patent.

If the application data sheet states, or the specification is amended to state, that the application is a "continuation" or "divisional" of its parent reissue application, the application may very well be treated as a Bauman type continuation or divisional application. The application data sheet should separately identify the application as (1) a continuation or divisional of the parent reissue application, and (2) a reissue of the original patent. For examples, see Reissue Filing Guide for Applications Filed on/after September 16, 2012 (posted at www.uspto.gov/sites/default/files/ forms/uspto_reissue_ads_guide_Sept2014.pdf).

Jump to MPEP Source · 37 CFR 1.177Reissue Application FilingReissue Patent PracticeAIA Effective Dates
StatutoryInformativeAlways
[mpep-1451-f56c807a191def9b587e0dfd]
Continuing Reissue Application Without Indicia Is Bauman
Note:
An application continuing a reissue application is considered a Bauman application if it lacks indicia suggesting a new reissue filing.
In general, an application which is a continuing application of a reissue application will be considered a Bauman application when there are no indicia on filing that a continuing reissue application is being filed. Indicia that a continuing reissue application is being filed are:
  • 1. A 37 CFR 1.175 reissue oath/declaration, which is not merely a copy of the parent’s reissue oath/declaration.
  • 2. A specification and/or claims in proper double column reissue format per 37 CFR 1.173.
  • 3. Amendments in proper format per 37 CFR 1.173.
  • 4. A 37 CFR 3.73 statement of assignee ownership and consent by assignee.
  • 5. A correct transmittal letter identifying the application as a reissue filing under 35 U.S.C. 251. It is recommended that Form PTO/AIA/50 be used.
  • 6. An identification of the application as being "a reissue continuation of application number [the parent reissue application]" or "a continuation of application number [the parent reissue application] and an application for reissue of patent number [the patent for which reissue is sought]" or equivalent language, rather than being "a continuation of reissue application number [the parent reissue application]."
Jump to MPEP Source · 37 CFR 1.177Reissue Application FilingReissue Patent PracticeColumn and Line References
StatutoryInformativeAlways
[mpep-1451-6a8aca55b965313bfa4e40ef]
Identification of Reissue Continuation Application
Note:
An application must identify itself as a reissue continuation of a specific parent reissue application rather than a continuation of the reissue application number.

In general, an application which is a continuing application of a reissue application will be considered a Bauman application when there are no indicia on filing that a continuing reissue application is being filed. Indicia that a continuing reissue application is being filed are:

6. An identification of the application as being "a reissue continuation of application number [the parent reissue application]" or "a continuation of application number [the parent reissue application] and an application for reissue of patent number [the patent for which reissue is sought]" or equivalent language, rather than being "a continuation of reissue application number [the parent reissue application]."

Jump to MPEP Source · 37 CFR 1.177Reissue Application FilingReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-9bf0c0f3f54bb8cff5775c80]
Requirement for Restricting Reissue Claims
Note:
The examiner can require restriction between original and newly added claims in a reissue application if they are directed to separate inventions.

37 CFR 1.176(b) permits the examiner to require restriction in a reissue application between the original claims of the patent and any newly added claims which are directed to a separate and distinct invention(s). See also MPEP § 1450. As a result of such a restriction requirement, divisional reissue applications may be filed for each of the inventions identified in the restriction requirement.

Jump to MPEP Source · 37 CFR 1.176(b)Reissue Application FilingRestriction Requirement (MPEP 802-803)Reissue Patent Practice
StatutoryPermittedAlways
[mpep-1451-12a46f6c10c9c4894bd40c20]
Permitted to File Multiple Reissue Patents
Note:
Applicants can file multiple reissue applications containing different claim groups from the original patent, as long as they comply with 37 CFR 1.177.

In addition, applicant may initiate a division of the claims by filing more than one reissue application in accordance with 37 CFR 1.177. The multiple reissue applications which are filed may contain different groups of claims from among the original patent claims, or some of the reissue applications may contain newly added groups (not present in the original patent). There is no requirement that the claims of the multiple reissue applications be independent and distinct from one another; if they are not independent and distinct from one another, the examiner must apply the appropriate double patenting rejections.

Jump to MPEP Source · 37 CFR 1.177Reissue Application FilingReissue Patent PracticeReissue Claim Requirements
StatutoryRequiredAlways
[mpep-1451-5e34c8c86bb191dadfdb0e04]
Cross Reference to Other Reissue Applications Required
Note:
All multiple reissue applications from a single patent must include a cross reference to each other in the first sentence of their respective specifications.

There is no requirement that a family of divisional reissue applications issue at the same time; however, it is required that they contain a cross reference to each other in the specification. 37 CFR 1.177(a) requires that all multiple reissue applications resulting from a single patent must include as the first sentence of their respective specifications a cross reference to the other reissue application(s). Accordingly, the first sentence of each reissue specification must provide notice stating that more than one reissue application has been filed, and it must identify each of the reissue applications and their relationship within the family of reissue applications, and to the original patent. An example of the suggested language to be inserted is as follows:

Jump to MPEP Source · 37 CFR 1.177(a)Reissue Application FilingReissue Patent PracticeReissue Filing Requirements
StatutoryRequiredAlways
[mpep-1451-72dfc2eb0d8994c21a239d58]
All Claims Must Be Presented In Some Form
Note:
Patent claims must be included as amended, unamended, or canceled in each reissue application.

Pursuant to 37 CFR 1.177(b) all of the claims of the patent to be reissued must be presented in each reissue application in some form, i.e., as amended, as unamended or as canceled. Further, any added claims must be numbered beginning with the next highest number following the last patent claim. It is noted that the same claim of the patent cannot be presented for examination in more than one of the divisional reissue applications, as a pending claim, in either its original or amended versions. If a patent claim is presented in one of the divisional reissue applications of a reissue application "family," as a pending claim, then that patent claim must be presented as a canceled claim in all the other reissue applications of that family. Once a claim in the patent has been reissued, it does not exist in the original patent; thus, it cannot be reissued from the original patent in another reissue application. If the same claim of the patent, e.g., patent claim 1 is presented for examination in more than one of the reissue applications, in different amended versions, the following rejections should be made in the reissue applications with that patent claim:

Jump to MPEP Source · 37 CFR 1.177(b)Reissue Application FilingReissue Patent PracticeReissue Claim Requirements
StatutoryRequiredAlways
[mpep-1451-cc97b6c956a7688dba4908e9]
Pending Claim Must Be Canceled In Other Reissue Applications
Note:
If a patent claim is presented as pending in one divisional reissue application, it must be canceled in all other reissue applications within the same family.

Pursuant to 37 CFR 1.177(b) all of the claims of the patent to be reissued must be presented in each reissue application in some form, i.e., as amended, as unamended or as canceled. Further, any added claims must be numbered beginning with the next highest number following the last patent claim. It is noted that the same claim of the patent cannot be presented for examination in more than one of the divisional reissue applications, as a pending claim, in either its original or amended versions. If a patent claim is presented in one of the divisional reissue applications of a reissue application "family," as a pending claim, then that patent claim must be presented as a canceled claim in all the other reissue applications of that family. Once a claim in the patent has been reissued, it does not exist in the original patent; thus, it cannot be reissued from the original patent in another reissue application. If the same claim of the patent, e.g., patent claim 1 is presented for examination in more than one of the reissue applications, in different amended versions, the following rejections should be made in the reissue applications with that patent claim:

Jump to MPEP Source · 37 CFR 1.177(b)Reissue Application FilingReissue Patent PracticeReissue Claim Requirements
StatutoryProhibitedAlways
[mpep-1451-f85fdef1dc6137691e7ba372]
Reissued Claim Cannot Be Resubmitted
Note:
A claim that has been reissued cannot be resubmitted in another reissue application for the original patent.

Pursuant to 37 CFR 1.177(b) all of the claims of the patent to be reissued must be presented in each reissue application in some form, i.e., as amended, as unamended or as canceled. Further, any added claims must be numbered beginning with the next highest number following the last patent claim. It is noted that the same claim of the patent cannot be presented for examination in more than one of the divisional reissue applications, as a pending claim, in either its original or amended versions. If a patent claim is presented in one of the divisional reissue applications of a reissue application "family," as a pending claim, then that patent claim must be presented as a canceled claim in all the other reissue applications of that family. Once a claim in the patent has been reissued, it does not exist in the original patent; thus, it cannot be reissued from the original patent in another reissue application. If the same claim of the patent, e.g., patent claim 1 is presented for examination in more than one of the reissue applications, in different amended versions, the following rejections should be made in the reissue applications with that patent claim:

Jump to MPEP Source · 37 CFR 1.177(b)Reissue Application FilingReissue Claim RequirementsReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-3b3b2d85c79f91320e2331c8]
Claim 1 Revision in Divisional Reissue Applications
Note:
An applicant can revise claim 1 to ABC in one divisional reissue application and ABD in another, canceling the original claim 1 in the second application and adding a new claim.

If there are patent claims 1 – 10 in two divisional reissue applications and an applicant wishes to revise claim 1, which is directed to AB (for example) to ABC in one divisional reissue application, and to ABD in a second divisional reissue application, applicant should do the following: Claim 1 in the first divisional reissue application can be revised to recite ABC. Claim 1 in the second divisional reissue application would be canceled, and new claim 11 would be added to recite ABD. The physical cancellation of claim 1 in the second divisional reissue application will not prejudice applicant’s rights in the amended version of claim 1 because those rights are retained via the first reissue application. Claim 1 continues to exist in the first reissue application, and both the first and second reissue applications taken together make up the totality of the correction of the original patent.

Jump to MPEP SourceReissue Application FilingReissue Patent PracticeReissue Claim Requirements
StatutoryInformativeAlways
[mpep-1451-c0a35d91f45882a19c07e22e]
Claim 1 Revision in Divisional Reissue Applications
Note:
If claim 1 is revised to ABD in one divisional reissue application, it must be canceled and a new claim 11 with ABD added in another application.

If there are patent claims 1 – 10 in two divisional reissue applications and an applicant wishes to revise claim 1, which is directed to AB (for example) to ABC in one divisional reissue application, and to ABD in a second divisional reissue application, applicant should do the following: Claim 1 in the first divisional reissue application can be revised to recite ABC. Claim 1 in the second divisional reissue application would be canceled, and new claim 11 would be added to recite ABD. The physical cancellation of claim 1 in the second divisional reissue application will not prejudice applicant’s rights in the amended version of claim 1 because those rights are retained via the first reissue application. Claim 1 continues to exist in the first reissue application, and both the first and second reissue applications taken together make up the totality of the correction of the original patent.

Jump to MPEP SourceReissue Application FilingReissue Patent PracticeReissue Claim Requirements
StatutoryInformativeAlways
[mpep-1451-4c086d1a0651325ffe8022f8]
Amended Claim Retained Across Divisional Reissue Applications
Note:
An amended claim in one divisional reissue application does not prejudice rights established in another, as both applications together form the corrected patent.

If there are patent claims 1 – 10 in two divisional reissue applications and an applicant wishes to revise claim 1, which is directed to AB (for example) to ABC in one divisional reissue application, and to ABD in a second divisional reissue application, applicant should do the following: Claim 1 in the first divisional reissue application can be revised to recite ABC. Claim 1 in the second divisional reissue application would be canceled, and new claim 11 would be added to recite ABD. The physical cancellation of claim 1 in the second divisional reissue application will not prejudice applicant’s rights in the amended version of claim 1 because those rights are retained via the first reissue application. Claim 1 continues to exist in the first reissue application, and both the first and second reissue applications taken together make up the totality of the correction of the original patent.

Jump to MPEP SourceReissue Application FilingReissue Patent PracticeReissue Claim Requirements
StatutoryInformativeAlways
[mpep-1451-13f64393188024556785dd00]
First Reissue Maintains Claim Continuity
Note:
Claim 1 in the first reissue application retains its existence, while both applications together correct the original patent.

If there are patent claims 1 – 10 in two divisional reissue applications and an applicant wishes to revise claim 1, which is directed to AB (for example) to ABC in one divisional reissue application, and to ABD in a second divisional reissue application, applicant should do the following: Claim 1 in the first divisional reissue application can be revised to recite ABC. Claim 1 in the second divisional reissue application would be canceled, and new claim 11 would be added to recite ABD. The physical cancellation of claim 1 in the second divisional reissue application will not prejudice applicant’s rights in the amended version of claim 1 because those rights are retained via the first reissue application. Claim 1 continues to exist in the first reissue application, and both the first and second reissue applications taken together make up the totality of the correction of the original patent.

Jump to MPEP SourceReissue Application FilingReissue Claim RequirementsReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-9e99e0f59709d2ae2bea41a2]
Requirement for Examining Parent and Continuation Reissue Together
Note:
Examine both the parent and continuation reissue applications together to identify their relationship and provide notice of multiple reissue filings.
The parent and the continuation reissue applications should be examined together if possible. In order that the parent-continuation relationship of the reissue applications be specifically identified and notice be provided of reissue applications for both the parent and the continuation reissue application, the following is done:
  • (A) An appropriate amendment to the continuing data entries must be made to the first sentence of the specification (see the discussion above in subsection I under the heading “Divisional Reissue Applications”).
  • (B) For an IFW reissue application file, a copy of the bibliographic data sheet from the IFW file history should be annotated by the examiner such that adequate notice is provided that more than one reissue application has been filed for a single original patent. The annotated sheet should be added to the application file in IFW.
Jump to MPEP SourceReissue Application FilingReissue Patent PracticeAccess to Oath/Declaration
Topic
11 rules
Topic

AIA Effective Dates

7 rules
StatutoryInformativeAlways
[mpep-1451-9f9eeefde3eebc63d1bb5e95]
Application Must Identify as Continuation/Divisional of Parent Reissue
Note:
The application must be identified on the data sheet as a continuation or divisional of its parent reissue application and also as a reissue of the original patent.

If the application data sheet states, or the specification is amended to state, that the application is a "continuation" or "divisional" of its parent reissue application, the application may very well be treated as a Bauman type continuation or divisional application. The application data sheet should separately identify the application as (1) a continuation or divisional of the parent reissue application, and (2) a reissue of the original patent. For examples, see Reissue Filing Guide for Applications Filed on/after September 16, 2012 (posted at www.uspto.gov/sites/default/files/ forms/uspto_reissue_ads_guide_Sept2014.pdf).

Jump to MPEP Source · 37 CFR 1.177AIA Effective DatesAIA Overview and Effective DatesAIA vs Pre-AIA Practice
StatutoryRequiredAlways
[mpep-1451-1a4f2d125434b1d77280b9a5]
New Oath/Declaration for Identifying Errors in Reissue Applications
Note:
For applications filed on or after September 16, 2012, a new oath/declaration is required to identify errors if the parent reissue application’s oath/declaration does not cover the error being corrected.

For applications filed on or after September 16, 2012, a new oath/declaration is required for identification of the error if the copy of the oath/declaration from the parent reissue application does not cover an error being corrected in the continuing reissue application. Identification of the error in the remarks accompanying the reissue application or a reply is not sufficient, because 37 CFR 1.175(f)(2) states that “[i]f all errors identified in the inventor’s oath or declaration from the earlier-filed reissue application are no longer being relied upon as the basis for reissue, the applicant must identify an error being relied upon as the basis for reissue,” and in this instance the initial oath/declaration (the copy filed) never stated a proper “error.” In other words, 37 CFR 1.175(f)(2) allows for the identification of the reissuable error in the remarks only when a proper reissuable error was previously entered into the application. If the copy of the reissue oath/declaration from the parent reissue application does in fact cover an error being corrected in the continuing reissue application, no such rejection should be made.

Jump to MPEP Source · 37 CFR 1.175(f)(2)AIA Effective DatesReissue Oath/Declaration ContentError Identification in Oath
StatutoryRequiredAlways
[mpep-1451-4ea288cf2da15c32465fe465]
Supplemental Reissue Oath/Declaration Required for Certain Errors
Note:
For applications filed before September 16, 2012, a supplemental reissue oath or declaration is required if the parent application's oath covers an error corrected in the continuing reissue application.

For applications filed before September 16, 2012, even when the copy of the reissue oath/declaration from the parent covers an error being corrected in the continuing reissue application, a supplemental reissue oath/declaration pursuant to pre-AIA 37 CFR 1.175 (b)(1) will be required. See MPEP § 1414.03. Pre-AIA 37 CFR 1.175(e) requires that the oath/declaration of a continuing reissue application must identify at least one error in the original patent which has not been corrected by the parent reissue application or an earlier reissue application. Thus, where a continuing reissue application, filed prior to September 16, 2012, corrects the same error in a different way than its parent reissue application does, different oaths/declarations must be presented in the two reissue applications. In addition, for applications filed before September 16, 2012, if a preliminary amendment was filed with the continuing reissue application, the examiner should check for the need of a supplemental reissue oath/declaration. Pursuant to pre-AIA 37 CFR 1.175(b)(1), for any error corrected via the preliminary amendment which is not covered by the oath or declaration submitted in the parent reissue application, applicant must submit a supplemental oath/declaration stating that every such error arose without any deceptive intention on the part of the applicant. See MPEP §§ 1414 and 1414.03.

Jump to MPEP Source · 37 CFR 1.175AIA Effective DatesReissue Oath/Declaration ContentError Identification in Oath
StatutoryRequiredAlways
[mpep-1451-9a0a3e12cc6f7c424b0d3394]
Continuing Reissue Application Must Identify UnCorrected Error
Note:
A continuing reissue application filed before September 16, 2012, must include an oath or declaration identifying at least one error in the original patent that was not corrected by its parent reissue application.

For applications filed before September 16, 2012, even when the copy of the reissue oath/declaration from the parent covers an error being corrected in the continuing reissue application, a supplemental reissue oath/declaration pursuant to pre-AIA 37 CFR 1.175 (b)(1) will be required. See MPEP § 1414.03. Pre-AIA 37 CFR 1.175(e) requires that the oath/declaration of a continuing reissue application must identify at least one error in the original patent which has not been corrected by the parent reissue application or an earlier reissue application. Thus, where a continuing reissue application, filed prior to September 16, 2012, corrects the same error in a different way than its parent reissue application does, different oaths/declarations must be presented in the two reissue applications. In addition, for applications filed before September 16, 2012, if a preliminary amendment was filed with the continuing reissue application, the examiner should check for the need of a supplemental reissue oath/declaration. Pursuant to pre-AIA 37 CFR 1.175(b)(1), for any error corrected via the preliminary amendment which is not covered by the oath or declaration submitted in the parent reissue application, applicant must submit a supplemental oath/declaration stating that every such error arose without any deceptive intention on the part of the applicant. See MPEP §§ 1414 and 1414.03.

Jump to MPEP Source · 37 CFR 1.175AIA Effective DatesReissue Oath/Declaration ContentError Identification in Oath
StatutoryRequiredAlways
[mpep-1451-69264196e73956cf23d6c83c]
Supplemental Oath/Declaration for Preliminary Amendment Errors
Note:
For applications filed before September 16, 2012, if a preliminary amendment corrects an error not covered by the parent reissue application's oath or declaration, applicant must submit a supplemental oath/declaration stating no deceptive intention.

For applications filed before September 16, 2012, even when the copy of the reissue oath/declaration from the parent covers an error being corrected in the continuing reissue application, a supplemental reissue oath/declaration pursuant to pre-AIA 37 CFR 1.175 (b)(1) will be required. See MPEP § 1414.03. Pre-AIA 37 CFR 1.175(e) requires that the oath/declaration of a continuing reissue application must identify at least one error in the original patent which has not been corrected by the parent reissue application or an earlier reissue application. Thus, where a continuing reissue application, filed prior to September 16, 2012, corrects the same error in a different way than its parent reissue application does, different oaths/declarations must be presented in the two reissue applications. In addition, for applications filed before September 16, 2012, if a preliminary amendment was filed with the continuing reissue application, the examiner should check for the need of a supplemental reissue oath/declaration. Pursuant to pre-AIA 37 CFR 1.175(b)(1), for any error corrected via the preliminary amendment which is not covered by the oath or declaration submitted in the parent reissue application, applicant must submit a supplemental oath/declaration stating that every such error arose without any deceptive intention on the part of the applicant. See MPEP §§ 1414 and 1414.03.

Jump to MPEP Source · 37 CFR 1.175AIA Effective DatesError Statement RequirementsReissue Oath/Declaration Content
StatutoryRecommendedAlways
[mpep-1451-9edb4a8d5ff8ea3e17b3b466]
Requirement for Explaining Sufficiency of Parent Oath/Declaration in Continuation Reissue
Note:
Applicants must explain why a copy of the oath or declaration from the parent reissue application is sufficient in continuation reissue applications filed on or after September 16, 2012.

Whenever a continuation reissue application is filed with a copy of the oath/declaration from the parent reissue application, the copy of the reissue oath/declaration in the continuation reissue application should be accepted by OPAP because it is an oath/declaration, even though it may be improper under 35 U.S.C. 251 or 37 CFR 1.175. For continuation reissue applications filed on or after September 16, 2012, in the remarks accompanying the continuation reissue application, the applicant should explain why the filing of the copy of the oath/declaration from the parent reissue application is sufficient. The examiner should check the copy of the oath/declaration and any remarks pertaining to the error to ensure that an error is correctly identified by the continuation reissue. See MPEP § 1414 for additional information.

Jump to MPEP Source · 37 CFR 1.175AIA Effective DatesAssignee as Applicant SignatureAIA Overview and Effective Dates
StatutoryInformativeAlways
[mpep-1451-fd4ebb37cbf7c1e8b2e70e01]
Correction of Error in Dependent Claims Requires Supplemental Declaration
Note:
The parent reissue application must include a supplemental declaration describing the addition of D to ABCE and ABCF combinations, correcting an error in original dependent claims.

The parent reissue application’s supplemental declaration or remarks (if the parent reissue application was filed on or after September 16, 2012) describes the addition of D to the ABCE and ABCF combinations, correcting an error in the original dependent claims. The copy of the original reissue declaration from the parent reissue application filed in the continuation reissue application describes the addition of D to the broad claim, correcting an error in the original independent claim. A copy of the original reissue declaration is filed in the continuation reissue application and the applicant explains, in the remarks section, why the filing of the copy of the oath/declaration from the parent reissue application is sufficient. The filing of the continuation reissue application is permitted because the applicant is free to split the correction of an error as to different claims into different reissue applications, where one is a continuing application of another. See In re Graff, 111 F.3d at 877, 42 USPQ2d at 1473, where the Federal Circuit stated that 35 U.S.C. 251 places “no greater burden on Mr. Graff’s continuation reissue application than upon a continuation of an original application…”

Jump to MPEP SourceAIA Effective DatesReissue Oath/Declaration ContentSupplemental Reissue Oath/Declaration
Topic

Reissue Filing Requirements

6 rules
StatutoryRequiredAlways
[mpep-1451-31a48d418d83143253c0a88a]
Specification Must Identify Multiple Reissue Applications
Note:
Each application for the reissue of a single patent must specify that multiple applications have been filed and identify each by number and date.

(a) The Office may reissue a patent as multiple reissue patents. If applicant files more than one application for the reissue of a single patent, each such application must contain or be amended to contain in the first sentence of the specification a notice stating that more than one reissue application has been filed and identifying each of the reissue applications by relationship, application number and filing date. The Office may correct by certificate of correction under § 1.322 any reissue patent resulting from an application to which this paragraph applies that does not contain the required notice.

Jump to MPEP Source · 37 CFR 1.322Reissue Filing RequirementsAnnouncement of ReissueReissue Application Filing
StatutoryPermittedAlways
[mpep-1451-9fab783641a0a8d5e006bc13]
Specification Must Identify Reissue as Continuation/Divisional
Note:
The specification must state that the application is a continuation or divisional of its parent reissue application and also a reissue of the original patent.

If the application data sheet states, or the specification is amended to state, that the application is a "continuation" or "divisional" of its parent reissue application, the application may very well be treated as a Bauman type continuation or divisional application. The application data sheet should separately identify the application as (1) a continuation or divisional of the parent reissue application, and (2) a reissue of the original patent. For examples, see Reissue Filing Guide for Applications Filed on/after September 16, 2012 (posted at www.uspto.gov/sites/default/files/ forms/uspto_reissue_ads_guide_Sept2014.pdf).

Jump to MPEP Source · 37 CFR 1.177Reissue Filing RequirementsReissue Application FilingReissue Patent Practice
StatutoryRequiredAlways
[mpep-1451-d75c59f6448ed4fa87f38581]
Cross Reference Required for Divisional Reissue Applications
Note:
All divisional reissue applications must include a cross reference to each other in their specifications.

There is no requirement that a family of divisional reissue applications issue at the same time; however, it is required that they contain a cross reference to each other in the specification. 37 CFR 1.177(a) requires that all multiple reissue applications resulting from a single patent must include as the first sentence of their respective specifications a cross reference to the other reissue application(s). Accordingly, the first sentence of each reissue specification must provide notice stating that more than one reissue application has been filed, and it must identify each of the reissue applications and their relationship within the family of reissue applications, and to the original patent. An example of the suggested language to be inserted is as follows:

Jump to MPEP Source · 37 CFR 1.177(a)Reissue Filing RequirementsReissue Patent PracticeReissue Application Filing
StatutoryRequiredAlways
[mpep-1451-78fb696c32bf2f6ee53c155d]
Specification Must Identify Related Reissues
Note:
Each reissue specification must state that more than one reissue application has been filed and identify each related application within the family, as well as their relationship to the original patent.

There is no requirement that a family of divisional reissue applications issue at the same time; however, it is required that they contain a cross reference to each other in the specification. 37 CFR 1.177(a) requires that all multiple reissue applications resulting from a single patent must include as the first sentence of their respective specifications a cross reference to the other reissue application(s). Accordingly, the first sentence of each reissue specification must provide notice stating that more than one reissue application has been filed, and it must identify each of the reissue applications and their relationship within the family of reissue applications, and to the original patent. An example of the suggested language to be inserted is as follows:

Jump to MPEP Source · 37 CFR 1.177(a)Reissue Filing RequirementsReissue Application FilingReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-dd181ea212696a5e51078ab7]
Cross Reference to Other Reissue Applications Required
Note:
All multiple reissue applications resulting from a single patent must include a cross reference to each other in the first sentence of their respective specifications.

There is no requirement that a family of divisional reissue applications issue at the same time; however, it is required that they contain a cross reference to each other in the specification. 37 CFR 1.177(a) requires that all multiple reissue applications resulting from a single patent must include as the first sentence of their respective specifications a cross reference to the other reissue application(s). Accordingly, the first sentence of each reissue specification must provide notice stating that more than one reissue application has been filed, and it must identify each of the reissue applications and their relationship within the family of reissue applications, and to the original patent. An example of the suggested language to be inserted is as follows:

Jump to MPEP Source · 37 CFR 1.177(a)Reissue Filing RequirementsReissue Application FilingReissue Patent Practice
StatutoryRequiredAlways
[mpep-1451-fb47e0137bdb2b8e9b9d0772]
Amendments to Specification for Divisional Reissue Applications
Note:
An appropriate amendment must be made to the first sentence of the specification to identify the parent-continuation relationship and notify both applications.

The parent and the continuation reissue applications should be examined together if possible. In order that the parent-continuation relationship of the reissue applications be specifically identified and notice be provided of reissue applications for both the parent and the continuation reissue application, the following is done (A) An appropriate amendment to the continuing data entries must be made to the first sentence of the specification (see the discussion above in subsection I under the heading “Divisional Reissue Applications”).

Jump to MPEP SourceReissue Filing RequirementsReissue Patent PracticeReissue Oath/Declaration Content
Topic

Access to Prosecution History

4 rules
StatutoryInformativeAlways
[mpep-1451-105811fdf0e952b54f3c6ff4]
Reissue Application Cross References Must Be Reflected in File
Note:
For an IFW reissue application, the examiner should annotate a copy of the bibliographic data sheet to reflect that multiple reissue applications have been filed for a single original patent.

In addition to the amendment to the first sentence of the specification, the reissue application cross references will also be reflected in the file. For an IFW reissue application file, a copy of the bibliographic data sheet from the IFW file history should be annotated by the examiner such that adequate notice is provided that more than one reissue application has been filed for a single original patent. The annotated sheet should be scanned into IFW.

Jump to MPEP SourceAccess to Prosecution HistoryReissue Filing RequirementsAccess to Specific Document Types
StatutoryRecommendedAlways
[mpep-1451-fff05aa633d3615737be7560]
Bibliographic Data Sheet Must Be Annotated for Reissue Applications
Note:
A copy of the bibliographic data sheet from the IFW file history must be annotated by the examiner to indicate multiple reissue applications have been filed for a single original patent.

In addition to the amendment to the first sentence of the specification, the reissue application cross references will also be reflected in the file. For an IFW reissue application file, a copy of the bibliographic data sheet from the IFW file history should be annotated by the examiner such that adequate notice is provided that more than one reissue application has been filed for a single original patent. The annotated sheet should be scanned into IFW.

Jump to MPEP SourceAccess to Prosecution HistoryReissue Application FilingAccess to Patent Application Files (MPEP 101-106)
StatutoryRecommendedAlways
[mpep-1451-4a54c4e5ba410248a66d7bbc]
Annotated Bibliographic Data Sheet Must Be Scanned for IFW Reissue
Note:
The examiner must annotate and scan the bibliographic data sheet from the IFW file history into the reissue application file.

In addition to the amendment to the first sentence of the specification, the reissue application cross references will also be reflected in the file. For an IFW reissue application file, a copy of the bibliographic data sheet from the IFW file history should be annotated by the examiner such that adequate notice is provided that more than one reissue application has been filed for a single original patent. The annotated sheet should be scanned into IFW.

Jump to MPEP SourceAccess to Prosecution HistoryReissue Filing RequirementsAccess to Specific Document Types
StatutoryRecommendedAlways
[mpep-1451-7cb78551838e1164ca41d5f3]
Bibliographic Data Sheet Must Be Annotated for IFW Reissue Applications
Note:
An examiner must annotate a copy of the bibliographic data sheet from the IFW file history to indicate that multiple reissue applications have been filed for a single original patent.

The parent and the continuation reissue applications should be examined together if possible. In order that the parent-continuation relationship of the reissue applications be specifically identified and notice be provided of reissue applications for both the parent and the continuation reissue application, the following is done:

(B) For an IFW reissue application file, a copy of the bibliographic data sheet from the IFW file history should be annotated by the examiner such that adequate notice is provided that more than one reissue application has been filed for a single original patent.

Jump to MPEP SourceAccess to Prosecution HistoryReissue Oath/Declaration ContentAccess to Patent Application Files (MPEP 101-106)
Topic

Reissue Claim Requirements

3 rules
StatutoryInformativeAlways
[mpep-1451-344812a4fcd2f307bf2f9540]
Claims Must Correct Original Patent Error
Note:
A reissue application will not be issued if it contains only unamended claims and does not correct an error in the original patent.

(c) If any one of the several reissue applications by itself fails to correct an error in the original patent as required by 35 U.S.C. 251 but is otherwise in condition for allowance, the Office may suspend action in the allowable application until all issues are resolved as to at least one of the remaining reissue applications. The Office may also merge two or more of the multiple reissue applications into a single reissue application. No reissue application containing only unamended patent claims and not correcting an error in the original patent will be passed to issue by itself.

Jump to MPEP Source · 37 CFR 1.177Reissue Claim RequirementsReissue Patent PracticeOriginal Patent Requirement (Same Invention)
StatutoryProhibitedAlways
[mpep-1451-21a1bc2bd3ec29bc194179bf]
Regular Continuation of Reissue Cannot Claim Original Patent’s Filing Date
Note:
A regular continuation of a reissue application cannot claim the filing date of the original patent but is limited to the filing date of the reissue.

The filing of a regular continuation or divisional application (e.g., a Bauman type continuation or divisional application) has at least two significant effects. First, the claims in a Bauman type continuation or divisional application will not have the same effective U.S. filing date as the original patent. This is because a reissue application is necessarily filed after the patenting of the original application. Therefore, a Bauman type continuation or divisional application of the reissue application could not satisfy the copendency requirement of 35 U.S.C. 120 with respect to the original patent. See Bauman, 683 F.2d at 410, 214 USPQ at 590 (regular continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue); Conover v. Downs, 35 F.2d 59, 17 C.C.P.A. 587, 590-91 (C.C.P.A. 1929) (reissue continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue). At best, the earliest effective U.S. filing date would be the filing date of the first reissue application that the Bauman type continuation or divisional application is entitled to claim benefit to under 35 U.S.C. 120. Second, a decision to file a Bauman type continuation or divisional application instead of a continuation or divisional reissue application results in the inability to file any subsequent reissues of the original patent once there are no pending applications for reissue of the original patent. See MPEP § 1460 for more information about surrender when there are multiple reissue applications and the effect of a reissue patent on other related reissue applications.

Jump to MPEP Source · 37 CFR 1.177Reissue Claim RequirementsReissue Patent PracticeCopendency Requirement
StatutoryPermittedAlways
[mpep-1451-bc51fcf13030a0dd445de5ed]
Multiple Reissue Applications May Contain Different Claim Groups
Note:
Applicants may file multiple reissue applications containing different claim groups from the original patent, including newly added claims not present in the original.

In addition, applicant may initiate a division of the claims by filing more than one reissue application in accordance with 37 CFR 1.177. The multiple reissue applications which are filed may contain different groups of claims from among the original patent claims, or some of the reissue applications may contain newly added groups (not present in the original patent). There is no requirement that the claims of the multiple reissue applications be independent and distinct from one another; if they are not independent and distinct from one another, the examiner must apply the appropriate double patenting rejections.

Jump to MPEP Source · 37 CFR 1.177Reissue Claim RequirementsReissue Patent PracticeReissue Application Filing
Topic

Divisional Application Benefit

3 rules
StatutoryInformativeAlways
[mpep-1451-83a85dafc0876620741edfd9]
Bauman Type Continual Application Affects Filing Date and Reissue Options
Note:
A Bauman type continuation or divisional application changes the filing date of claims and limits future reissue applications.

The filing of a regular continuation or divisional application (e.g., a Bauman type continuation or divisional application) has at least two significant effects. First, the claims in a Bauman type continuation or divisional application will not have the same effective U.S. filing date as the original patent. This is because a reissue application is necessarily filed after the patenting of the original application. Therefore, a Bauman type continuation or divisional application of the reissue application could not satisfy the copendency requirement of 35 U.S.C. 120 with respect to the original patent. See Bauman, 683 F.2d at 410, 214 USPQ at 590 (regular continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue); Conover v. Downs, 35 F.2d 59, 17 C.C.P.A. 587, 590-91 (C.C.P.A. 1929) (reissue continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue). At best, the earliest effective U.S. filing date would be the filing date of the first reissue application that the Bauman type continuation or divisional application is entitled to claim benefit to under 35 U.S.C. 120. Second, a decision to file a Bauman type continuation or divisional application instead of a continuation or divisional reissue application results in the inability to file any subsequent reissues of the original patent once there are no pending applications for reissue of the original patent. See MPEP § 1460 for more information about surrender when there are multiple reissue applications and the effect of a reissue patent on other related reissue applications.

Jump to MPEP Source · 37 CFR 1.177Divisional Application BenefitCopendency RequirementRecapture Doctrine
StatutoryInformativeAlways
[mpep-1451-99cbafc369d2ef5aec13fa50]
First Reissue Application Filing Date for Bauman Continuation/Divisional
Note:
The earliest effective U.S. filing date for a Bauman type continuation or divisional application is the filing date of the first reissue application it can claim benefit to under 35 U.S.C. 120.

The filing of a regular continuation or divisional application (e.g., a Bauman type continuation or divisional application) has at least two significant effects. First, the claims in a Bauman type continuation or divisional application will not have the same effective U.S. filing date as the original patent. This is because a reissue application is necessarily filed after the patenting of the original application. Therefore, a Bauman type continuation or divisional application of the reissue application could not satisfy the copendency requirement of 35 U.S.C. 120 with respect to the original patent. See Bauman, 683 F.2d at 410, 214 USPQ at 590 (regular continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue); Conover v. Downs, 35 F.2d 59, 17 C.C.P.A. 587, 590-91 (C.C.P.A. 1929) (reissue continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue). At best, the earliest effective U.S. filing date would be the filing date of the first reissue application that the Bauman type continuation or divisional application is entitled to claim benefit to under 35 U.S.C. 120. Second, a decision to file a Bauman type continuation or divisional application instead of a continuation or divisional reissue application results in the inability to file any subsequent reissues of the original patent once there are no pending applications for reissue of the original patent. See MPEP § 1460 for more information about surrender when there are multiple reissue applications and the effect of a reissue patent on other related reissue applications.

Jump to MPEP Source · 37 CFR 1.177Divisional Application BenefitDomestic Benefit Claims (35 U.S.C. 120/121)Reissue Application Filing
StatutoryInformativeAlways
[mpep-1451-e9f26b3d7872d2bce37019b4]
Bauman Type Continuation/Divisional Application Bars Subsequent Reissues
Note:
Filing a Bauman type continuation or divisional application instead of a reissue application prevents any further original patent reissues once all related reissue applications are pending.

The filing of a regular continuation or divisional application (e.g., a Bauman type continuation or divisional application) has at least two significant effects. First, the claims in a Bauman type continuation or divisional application will not have the same effective U.S. filing date as the original patent. This is because a reissue application is necessarily filed after the patenting of the original application. Therefore, a Bauman type continuation or divisional application of the reissue application could not satisfy the copendency requirement of 35 U.S.C. 120 with respect to the original patent. See Bauman, 683 F.2d at 410, 214 USPQ at 590 (regular continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue); Conover v. Downs, 35 F.2d 59, 17 C.C.P.A. 587, 590-91 (C.C.P.A. 1929) (reissue continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue). At best, the earliest effective U.S. filing date would be the filing date of the first reissue application that the Bauman type continuation or divisional application is entitled to claim benefit to under 35 U.S.C. 120. Second, a decision to file a Bauman type continuation or divisional application instead of a continuation or divisional reissue application results in the inability to file any subsequent reissues of the original patent once there are no pending applications for reissue of the original patent. See MPEP § 1460 for more information about surrender when there are multiple reissue applications and the effect of a reissue patent on other related reissue applications.

Jump to MPEP Source · 37 CFR 1.177Divisional Application BenefitRecapture DoctrineReissue Application Filing
Topic

Column and Line References

3 rules
StatutoryInformativeAlways
[mpep-1451-8b063c74be76ca9fb896bdb0]
Requirement for Proper Double Column Reissue Format
Note:
A specification and/or claims must be in the proper double column reissue format as per 37 CFR 1.173 when filing a continuing application of a reissue application.

In general, an application which is a continuing application of a reissue application will be considered a Bauman application when there are no indicia on filing that a continuing reissue application is being filed. Indicia that a continuing reissue application is being filed are:

2. A specification and/or claims in proper double column reissue format per 37 CFR 1.173.

Jump to MPEP Source · 37 CFR 1.177Column and Line ReferencesSpecification AmendmentsReissue Filing Requirements
StatutoryPermittedAlways
[mpep-1451-03da352fe8cffca94ba95b90]
Cross Reference Required for Divisional Reissue Applications
Note:
A cross reference to the other reissue application(s) must be included in one of the divisional reissue applications before it can issue.

Where one of the divisional reissue applications of the family has issued without the required cross reference to the other reissue application(s), the examiner will refer the matter to their Supervisory Patent Examiner (SPE) or Supervisory Patent Reexamination Specialist (SPRS). The SPE or SPRS will initiate a certificate of correction under 37 CFR 1.322 to include the appropriate cross reference in the already issued first reissue patent before passing the pending reissue application to issue. Form paragraph 10.19 may be used for such purpose. After the SPE or SPRS prepares the memorandum as per form paragraph 10.19, the memorandum should be forwarded to the Certificates of Correction Branch for issuance of a certificate. The examiner should make a reference in the pending divisional reissue application to the fact that an actual request for a certificate of correction has been initiated in the first reissue patent pursuant to 37 CFR 1.177(a), e.g., by an entry in the search notes or in an examiner’s amendment.

Jump to MPEP Source · 37 CFR 1.322Column and Line ReferencesSpecification AmendmentsForm of Reissue Patent
StatutoryRecommendedAlways
[mpep-1451-9ae2f04f0849abdff051c4ba]
Memo for Certificate of Correction Required After Reissue
Note:
After the SPE or SPRS prepares a form paragraph 10.19 memorandum, it must be forwarded to the Certificates of Correction Branch for issuance of a certificate.

Where one of the divisional reissue applications of the family has issued without the required cross reference to the other reissue application(s), the examiner will refer the matter to their Supervisory Patent Examiner (SPE) or Supervisory Patent Reexamination Specialist (SPRS). The SPE or SPRS will initiate a certificate of correction under 37 CFR 1.322 to include the appropriate cross reference in the already issued first reissue patent before passing the pending reissue application to issue. Form paragraph 10.19 may be used for such purpose. After the SPE or SPRS prepares the memorandum as per form paragraph 10.19, the memorandum should be forwarded to the Certificates of Correction Branch for issuance of a certificate. The examiner should make a reference in the pending divisional reissue application to the fact that an actual request for a certificate of correction has been initiated in the first reissue patent pursuant to 37 CFR 1.177(a), e.g., by an entry in the search notes or in an examiner’s amendment.

Jump to MPEP Source · 37 CFR 1.322Column and Line ReferencesSpecification AmendmentsForm of Reissue Patent
Topic

Domestic Benefit Claims (35 U.S.C. 120/121)

3 rules
StatutoryInformativeAlways
[mpep-1451-5373320a4cc0b717db2d24cb]
Continuation Reissue Application Must Claim Benefit Under 35 U.S.C. 120
Note:
An application for reissue must claim benefit under 35 U.S.C. 120 as a continuation of another reissue application.

Example 7: This is an application for reissue of U.S. Patent No. 99,234,567 and claims benefit under 35 U.S.C. 120 as a continuation of application no. 99/123,456, which is an application for reissue of U.S. Patent No. 99,234,567.

Jump to MPEP Source · 37 CFR 1.177Domestic Benefit Claims (35 U.S.C. 120/121)Priority and Benefit ClaimsReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-9d2a67845640d961bad69340]
Continuation Reissue Application Claims Benefit Under 35 U.S.C. 120
Note:
This application for reissuing a patent claims the benefit of a prior filed continuation application under 35 U.S.C. 120.

Example 8: This is an application for reissue of U.S. Patent No. 99,234,567 and claims benefit under 35 U.S.C. 120 as a continuation of application no. 99/123,456.

Jump to MPEP Source · 37 CFR 1.177Domestic Benefit Claims (35 U.S.C. 120/121)Priority and Benefit ClaimsReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-1ad4ba06d2ae743812865951]
Continuation Reissue Application Requirement
Note:
This application must claim benefit under 35 U.S.C. 120 as a continuation of another reissue application.

Example 9: This is an application for reissue of U.S. Patent No. 99,234,567. This application claims benefit under 35 U.S.C. 120 as a continuation of application no. 99/123,456, which is an application for reissue of U.S. Patent No. 99,234,567.

Jump to MPEP Source · 37 CFR 1.177Domestic Benefit Claims (35 U.S.C. 120/121)Priority and Benefit ClaimsReissue Patent Practice
Topic

Types of Claim Status in Reissue

2 rules
StatutoryProhibitedAlways
[mpep-1451-5fdb1895882d294c8e279bba]
Same Claim Cannot Be Examined Multiple Times
Note:
A claim from the original patent cannot be presented in its unamended form for examination in more than one reissue application.

(b) If applicant files more than one application for the reissue of a single patent, each claim of the patent being reissued must be presented in each of the reissue applications as an amended, unamended, or canceled (shown in brackets) claim, with each such claim bearing the same number as in the patent being reissued. The same claim of the patent being reissued may not be presented in its original unamended form for examination in more than one of such multiple reissue applications. The numbering of any added claims in any of the multiple reissue applications must follow the number of the highest numbered original patent claim.

Jump to MPEP Source · 37 CFR 1.177Types of Claim Status in ReissueClaim Status Identifiers in ReissueClaim Amendments
StatutoryRequiredAlways
[mpep-1451-795c935573a2fd9195df2bd9]
Claim Numbers Must Follow Highest Original Patent Claim
Note:
In multiple reissue applications, added claims must be numbered sequentially starting from the highest number of original patent claims.

(b) If applicant files more than one application for the reissue of a single patent, each claim of the patent being reissued must be presented in each of the reissue applications as an amended, unamended, or canceled (shown in brackets) claim, with each such claim bearing the same number as in the patent being reissued. The same claim of the patent being reissued may not be presented in its original unamended form for examination in more than one of such multiple reissue applications. The numbering of any added claims in any of the multiple reissue applications must follow the number of the highest numbered original patent claim.

Jump to MPEP Source · 37 CFR 1.177Types of Claim Status in ReissueClaim Status Identifiers in ReissueChanges Relative to Patent
Topic

Original Patent Requirement (Same Invention)

2 rules
StatutoryRequiredAlways
[mpep-1451-36eddea5363878fac946e6bd]
Suspend Action on Allowable Reissue Until Errors Resolved
Note:
If one reissue application fails to correct an error in the original patent but is otherwise ready for allowance, the Office may suspend further action until all issues are resolved in at least one of the remaining applications.

(c) If any one of the several reissue applications by itself fails to correct an error in the original patent as required by 35 U.S.C. 251 but is otherwise in condition for allowance, the Office may suspend action in the allowable application until all issues are resolved as to at least one of the remaining reissue applications. The Office may also merge two or more of the multiple reissue applications into a single reissue application. No reissue application containing only unamended patent claims and not correcting an error in the original patent will be passed to issue by itself.

Jump to MPEP Source · 37 CFR 1.177Original Patent Requirement (Same Invention)Reissue Claim RequirementsReissue Patent Practice
StatutoryInformativeAlways
[mpep-1451-a3eddeb40c9cb335105beaca]
Claim 1 Superseded by Other Reissue Application
Note:
A reissue application cannot correct an error in the original patent if it would supersede claim 1 from another reissue application.

A rejection under 35 U.S.C. 251, in that the reissue application is not correcting an error in the original patent, because original claim 1 would be superseded by the reissuance of claim 1 in the other reissue application.

Jump to MPEP SourceOriginal Patent Requirement (Same Invention)Reissue Claim RequirementsReissue Patent Practice
Topic

Amendments in Reissue

2 rules
StatutoryInformativeAlways
[mpep-1451-a06de8a62fb8de6b00f41ec0]
Amendments Must Be In Proper Format For Continuing Reissue Applications
Note:
The rule requires that amendments in a continuing reissue application must be submitted in the proper format as specified by 37 CFR 1.173.

In general, an application which is a continuing application of a reissue application will be considered a Bauman application when there are no indicia on filing that a continuing reissue application is being filed. Indicia that a continuing reissue application is being filed are:

3. Amendments in proper format per 37 CFR 1.173.

Jump to MPEP Source · 37 CFR 1.177Amendments in ReissueReissue Application FilingReissue Patent Practice
StatutoryRecommendedAlways
[mpep-1451-fefd55cbacc71b82707938a8]
Pending Divisional Reissue Application Must Reference Certificate of Correction Request
Note:
The examiner must add a reference to the pending divisional reissue application indicating that a certificate of correction has been requested in the first reissue patent.

Where one of the divisional reissue applications of the family has issued without the required cross reference to the other reissue application(s), the examiner will refer the matter to their Supervisory Patent Examiner (SPE) or Supervisory Patent Reexamination Specialist (SPRS). The SPE or SPRS will initiate a certificate of correction under 37 CFR 1.322 to include the appropriate cross reference in the already issued first reissue patent before passing the pending reissue application to issue. Form paragraph 10.19 may be used for such purpose. After the SPE or SPRS prepares the memorandum as per form paragraph 10.19, the memorandum should be forwarded to the Certificates of Correction Branch for issuance of a certificate. The examiner should make a reference in the pending divisional reissue application to the fact that an actual request for a certificate of correction has been initiated in the first reissue patent pursuant to 37 CFR 1.177(a), e.g., by an entry in the search notes or in an examiner’s amendment.

Jump to MPEP Source · 37 CFR 1.322Amendments in ReissueReissue Patent IssuanceReissue Patent Practice
Topic

Reissue and Reexamination

2 rules
StatutoryRecommendedAlways
[mpep-1451-0ea2ef0de660bf19b909518b]
Refer Divisional and Continuation Reissue Questions to TQAS/SPRS
Note:
Questions regarding the propriety of divisional and continuation reissue applications must be referred to the Technology Center Training Quality Assurance Specialist or Supervisory Patent Reexamination Specialist.

Questions relating to the propriety of divisional reissue applications and continuation reissue applications should be referred via the Technology Center (TC) Training Quality Assurance Specialist (TQAS) or Supervisory Patent Reexamination Specialist (SPRS).

Jump to MPEP Source · 37 CFR 1.177Reissue and ReexaminationQuality Assurance Specialist ReviewConcurrent Reissue Proceedings
StatutoryRequiredAlways
[mpep-1451-72e4437fa3965fd0828ebb4b]
Cross Reference Required for Issued Divisional Reissue Applications
Note:
Examiners must refer cases where a divisional reissue application has issued without the required cross reference to other applications, initiating a certificate of correction.

Where one of the divisional reissue applications of the family has issued without the required cross reference to the other reissue application(s), the examiner will refer the matter to their Supervisory Patent Examiner (SPE) or Supervisory Patent Reexamination Specialist (SPRS). The SPE or SPRS will initiate a certificate of correction under 37 CFR 1.322 to include the appropriate cross reference in the already issued first reissue patent before passing the pending reissue application to issue. Form paragraph 10.19 may be used for such purpose. After the SPE or SPRS prepares the memorandum as per form paragraph 10.19, the memorandum should be forwarded to the Certificates of Correction Branch for issuance of a certificate. The examiner should make a reference in the pending divisional reissue application to the fact that an actual request for a certificate of correction has been initiated in the first reissue patent pursuant to 37 CFR 1.177(a), e.g., by an entry in the search notes or in an examiner’s amendment.

Jump to MPEP Source · 37 CFR 1.322Reissue and ReexaminationConcurrent Reissue ProceedingsReissue Patent Practice
Topic

Lack of Antecedent Basis (MPEP 2173.05(e))

2 rules
StatutoryInformativeAlways
[mpep-1451-d2f7a9718e05645007744f9a]
Claims Must Be Particularly Pointed Out and Distinctly Claimed
Note:
Claims must clearly describe the invention without ambiguity, especially when presented in different applications.

A rejection under 35 U.S.C. 112, in that claim 1 is indefinite because the invention of claim 1 is not particularly pointed out and distinctly claimed. Claim 1 presents one coverage in divisional reissue application X and another in the present reissue application. This is inconsistent.

Jump to MPEP SourceLack of Antecedent Basis (MPEP 2173.05(e))35 U.S.C. 112(b) – Definiteness (MPEP 2171-2173)Disclosure Requirements
StatutoryInformativeAlways
[mpep-1451-ea6b6d5ea567eff3089600d7]
Claims Must Consistently Describe Invention
Note:
The claims in a divisional reissue application and the present reissue application must consistently describe the same invention to avoid indefiniteness under section 112.

A rejection under 35 U.S.C. 112, in that claim 1 is indefinite because the invention of claim 1 is not particularly pointed out and distinctly claimed. Claim 1 presents one coverage in divisional reissue application X and another in the present reissue application. This is inconsistent.

Jump to MPEP SourceLack of Antecedent Basis (MPEP 2173.05(e))35 U.S.C. 112(b) – Definiteness (MPEP 2171-2173)Disclosure Requirements
Topic

Responding to 101 Rejections

2 rules
StatutoryPermittedAlways
[mpep-1451-0d7aa63d1551fa36fd6e0d03]
Requirement for Terminal Disclaimer to Overcome Nonstatutory Double Patenting
Note:
A terminal disclaimer must be filed to address a nonstatutory double patenting rejection and ensure common ownership or enforcement of reissue patents.

If the same or similar claims are presented in more than one of the multiple reissue applications, the possibility of statutory double patenting (35 U.S.C. 101) or nonstatutory (judicially created doctrine) double patenting should be considered by the examiner during examination, and the appropriate rejections made. A terminal disclaimer may be filed to overcome a nonstatutory double patenting rejection. The terminal disclaimer is necessary in order to ensure common ownership in accordance with 37 CFR 1.321(c)(3) or common enforcement in accordance with 37 CFR 1.321(d)(3) of the reissue patents during enforcement actions in the remainder of the unexpired term of the original patent.

Jump to MPEP Source · 37 CFR 1.321(c)(3)Responding to 101 RejectionsPatent EligibilityReissue Claim Requirements
StatutoryInformativeAlways
[mpep-1451-55c193d81a6d1258302d379d]
Terminal Disclaimer Required for Common Ownership During Enforcement
Note:
A terminal disclaimer is necessary to ensure common ownership of reissue patents during enforcement actions in the remainder of the unexpired term of the original patent.

If the same or similar claims are presented in more than one of the multiple reissue applications, the possibility of statutory double patenting (35 U.S.C. 101) or nonstatutory (judicially created doctrine) double patenting should be considered by the examiner during examination, and the appropriate rejections made. A terminal disclaimer may be filed to overcome a nonstatutory double patenting rejection. The terminal disclaimer is necessary in order to ensure common ownership in accordance with 37 CFR 1.321(c)(3) or common enforcement in accordance with 37 CFR 1.321(d)(3) of the reissue patents during enforcement actions in the remainder of the unexpired term of the original patent.

Jump to MPEP Source · 37 CFR 1.321(c)(3)Responding to 101 RejectionsPatent EligibilityReissue Claim Requirements
Topic

Double Patenting

2 rules
StatutoryRecommendedAlways
[mpep-1451-1b88799f9ba86f67a1800487]
Continuation Reissue Claims Must Avoid Double Patenting Over Parent
Note:
When the parent reissue application issues before examination of the continuation reissue application, the claims of the continuation must be reviewed for double patenting over the parent's claims.

Where the parent reissue application issues before the examination of the continuation reissue application, the claims of the continuation reissue application should be carefully reviewed for double patenting over the claims of the parent reissue application. Where the parent and the continuation reissue applications are examined together, a provisional double patenting rejection should be made in both cases as to any overlapping claims. See MPEP § 804§ 804.05 as to double patenting rejections. Any terminal disclaimer filed to obviate a nonstatutory double patenting rejection ensures common ownership in accordance with 37 CFR 1.321(c)(3) or common enforcement in accordance with 37 CFR 1.321(d)(3) of the reissue patents during enforcement actions in the remainder of the unexpired term of the original patent.

Jump to MPEP Source · 37 CFR 1.321(c)(3)Double PatentingStatutory Authority for ExaminationExamination Procedures
StatutoryRecommendedAlways
[mpep-1451-42dcb2c801b8f38292874d09]
Provisional Double Patenting Rejection for Overlapping Claims in Parent and Continuation Reissue Applications
Note:
When parent and continuation reissue applications are examined together, any overlapping claims must receive a provisional double patenting rejection.

Where the parent reissue application issues before the examination of the continuation reissue application, the claims of the continuation reissue application should be carefully reviewed for double patenting over the claims of the parent reissue application. Where the parent and the continuation reissue applications are examined together, a provisional double patenting rejection should be made in both cases as to any overlapping claims. See MPEP § 804§ 804.05 as to double patenting rejections. Any terminal disclaimer filed to obviate a nonstatutory double patenting rejection ensures common ownership in accordance with 37 CFR 1.321(c)(3) or common enforcement in accordance with 37 CFR 1.321(d)(3) of the reissue patents during enforcement actions in the remainder of the unexpired term of the original patent.

Jump to MPEP Source · 37 CFR 1.321(c)(3)Double PatentingReissue Patent PracticeReissue Oath/Declaration Content
Topic

Assignee as Applicant Signature

2 rules
StatutoryRecommendedAlways
[mpep-1451-f38c6254882f233f0a5a4969]
Terminal Disclaimer Required for Nonstatutory Double Patenting Rejections
Note:
Examiner must consider nonstatutory double patenting rejections and require terminal disclaimers in each pending application, especially when the applicant could not avoid separate filings.

A nonstatutory double patenting rejection should be considered by the examiner, with the requirement of a terminal disclaimer in each pending application. In re Berg, 140 F.3d 1428, 1435, 46 USPQ2d 1226, 1232 (Fed. Cir. 1998) (“The two-way exception can only apply when the applicant could not avoid separate filings, and even then, only if the PTO controlled the rates of prosecution to cause the later filed species claims to issue before the claims for a genus in an earlier application…In Berg’s case, the two applications could have been filed as one, so it is irrelevant to our disposition who actually controlled the respective rates of prosecution.”).

Jump to MPEP SourceAssignee as Applicant SignatureApplicant and Assignee Filing Under AIAReissue Oath/Declaration Content
StatutoryInformativeAlways
[mpep-1451-104b9ff1b4ef6acced0d46e5]
Continuation Reissue Application Requires Copy of Parent Oath/Declaration
Note:
The continuation reissue application must include a copy of the oath/declaration from the parent reissue application, and the applicant must explain why it is sufficient.

The parent reissue application’s supplemental declaration or remarks (if the parent reissue application was filed on or after September 16, 2012) describes the addition of D to the ABCE and ABCF combinations, correcting an error in the original dependent claims. The copy of the original reissue declaration from the parent reissue application filed in the continuation reissue application describes the addition of D to the broad claim, correcting an error in the original independent claim. A copy of the original reissue declaration is filed in the continuation reissue application and the applicant explains, in the remarks section, why the filing of the copy of the oath/declaration from the parent reissue application is sufficient. The filing of the continuation reissue application is permitted because the applicant is free to split the correction of an error as to different claims into different reissue applications, where one is a continuing application of another. See In re Graff, 111 F.3d at 877, 42 USPQ2d at 1473, where the Federal Circuit stated that 35 U.S.C. 251 places “no greater burden on Mr. Graff’s continuation reissue application than upon a continuation of an original application…”

Jump to MPEP SourceAssignee as Applicant SignatureApplicant and Assignee Filing Under AIAReissue Oath or Declaration
Topic

Announcement of Reissue

1 rules
StatutoryRequiredAlways
[mpep-1451-f8aa4458648f8401371acc85]
Notice Required for Reissue Patent
Note:
A reissue patent must contain a notice stating multiple reissue applications have been filed and identifying each application.

(a) The Office may reissue a patent as multiple reissue patents. If applicant files more than one application for the reissue of a single patent, each such application must contain or be amended to contain in the first sentence of the specification a notice stating that more than one reissue application has been filed and identifying each of the reissue applications by relationship, application number and filing date. The Office may correct by certificate of correction under § 1.322 any reissue patent resulting from an application to which this paragraph applies that does not contain the required notice.

Jump to MPEP Source · 37 CFR 1.322Announcement of ReissueReissue Patent IssuanceReissue Patent Practice
Topic

Procedure for Canceling Claims

1 rules
StatutoryRequiredAlways
[mpep-1451-0e7fca2941ff52cadfb8b8c3]
Each Claim Must Be Presented Similarly In All Reissue Applications
Note:
If an applicant files multiple reissue applications for a single patent, each claim must be presented identically (amended, unamended, or canceled) in all applications and follow the same numbering as the original patent.

(b) If applicant files more than one application for the reissue of a single patent, each claim of the patent being reissued must be presented in each of the reissue applications as an amended, unamended, or canceled (shown in brackets) claim, with each such claim bearing the same number as in the patent being reissued. The same claim of the patent being reissued may not be presented in its original unamended form for examination in more than one of such multiple reissue applications. The numbering of any added claims in any of the multiple reissue applications must follow the number of the highest numbered original patent claim.

Jump to MPEP Source · 37 CFR 1.177Procedure for Canceling ClaimsClaim Status Identifiers in ReissueCanceling Patent Claims
Topic

Copendency Requirement

1 rules
StatutoryInformativeAlways
[mpep-1451-d0ff499a393d8d81debf70eb]
Bauman Type Continualization Does Not Share Original Filing Date
Note:
A Bauman type continuation or divisional application of a reissue application cannot claim the same filing date as the original patent due to the sequential nature of reissue filings.

The filing of a regular continuation or divisional application (e.g., a Bauman type continuation or divisional application) has at least two significant effects. First, the claims in a Bauman type continuation or divisional application will not have the same effective U.S. filing date as the original patent. This is because a reissue application is necessarily filed after the patenting of the original application. Therefore, a Bauman type continuation or divisional application of the reissue application could not satisfy the copendency requirement of 35 U.S.C. 120 with respect to the original patent. See Bauman, 683 F.2d at 410, 214 USPQ at 590 (regular continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue); Conover v. Downs, 35 F.2d 59, 17 C.C.P.A. 587, 590-91 (C.C.P.A. 1929) (reissue continuation of a reissue cannot claim benefit to the filing date of the original patent, but instead is limited to the filing date of the reissue). At best, the earliest effective U.S. filing date would be the filing date of the first reissue application that the Bauman type continuation or divisional application is entitled to claim benefit to under 35 U.S.C. 120. Second, a decision to file a Bauman type continuation or divisional application instead of a continuation or divisional reissue application results in the inability to file any subsequent reissues of the original patent once there are no pending applications for reissue of the original patent. See MPEP § 1460 for more information about surrender when there are multiple reissue applications and the effect of a reissue patent on other related reissue applications.

Jump to MPEP Source · 37 CFR 1.177Copendency RequirementDivisional Application BenefitDomestic Benefit Claims (35 U.S.C. 120/121)
Topic

Restriction Requirement (MPEP 802-803)

1 rules
StatutoryPermittedAlways
[mpep-1451-e5ba7547145f5f2a987b2aac]
Divisional Reissue Applications for Each Invention Identified in Restriction Requirement
Note:
Allows filing of separate reissue applications for each invention identified in a restriction requirement.

37 CFR 1.176(b) permits the examiner to require restriction in a reissue application between the original claims of the patent and any newly added claims which are directed to a separate and distinct invention(s). See also MPEP § 1450. As a result of such a restriction requirement, divisional reissue applications may be filed for each of the inventions identified in the restriction requirement.

Jump to MPEP Source · 37 CFR 1.176(b)Restriction Requirement (MPEP 802-803)Reissue Patent PracticeRestriction and Election Practice (MPEP Chapter 800)
Topic

Specification Amendments

1 rules
StatutoryRecommendedAlways
[mpep-1451-0032e2ae9ff09a5ad2caaac1]
Cross Reference to Other Reissue Applications Required
Note:
The examiner must require an amendment if the applicant fails to include a cross reference to other reissue applications in the first sentence of each specification.

The examiner should object to the specification and require an appropriate amendment if applicant fails to include such a cross reference to the other reissue applications in the first sentence of the specification of each of the reissue applications.

Jump to MPEP Source · 37 CFR 1.177Specification AmendmentsAmendments in ReissueReissue Patent Practice
Topic

Reissue Patent Issuance

1 rules
StatutoryInformativeAlways
[mpep-1451-e627c08e440399253dde29da]
Cross Reference Required Before Issuing First Reissue Patent
Note:
The SPE or SPRS must initiate a certificate of correction to include the appropriate cross reference in the first reissue patent before issuing the pending reissue application.

Where one of the divisional reissue applications of the family has issued without the required cross reference to the other reissue application(s), the examiner will refer the matter to their Supervisory Patent Examiner (SPE) or Supervisory Patent Reexamination Specialist (SPRS). The SPE or SPRS will initiate a certificate of correction under 37 CFR 1.322 to include the appropriate cross reference in the already issued first reissue patent before passing the pending reissue application to issue. Form paragraph 10.19 may be used for such purpose. After the SPE or SPRS prepares the memorandum as per form paragraph 10.19, the memorandum should be forwarded to the Certificates of Correction Branch for issuance of a certificate. The examiner should make a reference in the pending divisional reissue application to the fact that an actual request for a certificate of correction has been initiated in the first reissue patent pursuant to 37 CFR 1.177(a), e.g., by an entry in the search notes or in an examiner’s amendment.

Jump to MPEP Source · 37 CFR 1.322Reissue Patent IssuanceReissue Patent PracticeColumn and Line References
Topic

35 U.S.C. 101 – Patent Eligibility

1 rules
StatutoryRecommendedAlways
[mpep-1451-1350cd7e0caba00aee567dce]
Examiner Must Consider Double Patenting in Reissue Applications
Note:
The examiner must evaluate the possibility of statutory and nonstatutory double patenting when similar claims are presented in multiple reissue applications.

If the same or similar claims are presented in more than one of the multiple reissue applications, the possibility of statutory double patenting (35 U.S.C. 101) or nonstatutory (judicially created doctrine) double patenting should be considered by the examiner during examination, and the appropriate rejections made. A terminal disclaimer may be filed to overcome a nonstatutory double patenting rejection. The terminal disclaimer is necessary in order to ensure common ownership in accordance with 37 CFR 1.321(c)(3) or common enforcement in accordance with 37 CFR 1.321(d)(3) of the reissue patents during enforcement actions in the remainder of the unexpired term of the original patent.

Jump to MPEP Source · 37 CFR 1.321(c)(3)Patent EligibilityResponding to 101 RejectionsReissue Patent Practice
Topic

Reissue Oath or Declaration

1 rules
StatutoryRecommendedAlways
[mpep-1451-6591ad68b479c7ed8933f1d8]
Copy of Oath/Declaration from Parent Sufficient
Note:
Explain why a copy of the oath or declaration from the parent reissue application is adequate for the continuing reissue application.

In the remarks accompanying a continuing reissue application, the applicant should explain why the filing of the copy of the oath/declaration from the parent reissue application is sufficient.

Jump to MPEP Source · 37 CFR 1.175Reissue Oath or DeclarationReissue Patent PracticeReissue Oath/Declaration Content
Topic

Access to Patent Application Files (MPEP 101-106)

1 rules
StatutoryRecommendedAlways
[mpep-1451-423e1deda85f9135ec468306]
Annotated Bibliographic Data Sheet Required for IFW Reissue Applications
Note:
The examiner must annotate the bibliographic data sheet and add it to the application file in IFW to identify parent-continuation relationships of reissue applications.

The parent and the continuation reissue applications should be examined together if possible. In order that the parent-continuation relationship of the reissue applications be specifically identified and notice be provided of reissue applications for both the parent and the continuation reissue application, the following is done:

The annotated sheet should be added to the application file in IFW.

Jump to MPEP SourceAccess to Patent Application Files (MPEP 101-106)Access to Oath/DeclarationReissue Oath/Declaration Content
Topic

Terminal Disclaimer Practice

1 rules
StatutoryInformativeAlways
[mpep-1451-14625ceb58476535713dc71e]
Ensure Common Ownership During Enforcement
Note:
A terminal disclaimer must be filed to ensure the reissue patents are owned in common during enforcement actions for the remainder of the original patent's term.

Where the parent reissue application issues before the examination of the continuation reissue application, the claims of the continuation reissue application should be carefully reviewed for double patenting over the claims of the parent reissue application. Where the parent and the continuation reissue applications are examined together, a provisional double patenting rejection should be made in both cases as to any overlapping claims. See MPEP § 804§ 804.05 as to double patenting rejections. Any terminal disclaimer filed to obviate a nonstatutory double patenting rejection ensures common ownership in accordance with 37 CFR 1.321(c)(3) or common enforcement in accordance with 37 CFR 1.321(d)(3) of the reissue patents during enforcement actions in the remainder of the unexpired term of the original patent.

Jump to MPEP Source · 37 CFR 1.321(c)(3)Terminal Disclaimer PracticeReissue Oath/Declaration ContentJoint Research Agreements (MPEP 2156)

Examiner Form Paragraphs

Examiner form paragraphs are standard language that you might see in an Office Action or communication from the USPTO. Examiners have latitude to change the form paragraphs, but you will often see this exact language.

¶ 10.19 ¶ 10.19 Memorandum – Certificate of Correction (Cross-Reference to Other Reissues in Family)

DATE: [1]

TO: Certificates of Correction Branch

FROM: [2] , SPE, Art Unit [3]

SUBJECT: Request for Certificate of Correction

Please issue a Certificate of Correction in U. S. Letters Patent No. [4] as specified on the attached Certificate.

______________________

[5], SPE

Art Unit [6]

Patent No. [7]

Patented: [8]

The present reissue patent issued from an application that is one of a family of divisional reissue applications resulting from Patent No. [9]. The present reissue patent has issued without the cross reference to the other reissue application(s) of the family which is required pursuant to 37 CFR 1.177(a) . Accordingly, insert in the first sentence of the specification as follows:

Notice: More than one reissue application has been filed for the reissue of patent [9]. The reissue applications are [10] .

_________________________

[11], Supervisory Patent Examiner

Art Unit [12]

Citations

Primary topicCitation
35 U.S.C. 101 – Patent Eligibility
Responding to 101 Rejections
35 U.S.C. § 101
Reissue Application Filing35 U.S.C. § 111(a)
Lack of Antecedent Basis (MPEP 2173.05(e))35 U.S.C. § 112
Copendency Requirement
Divisional Application Benefit
Domestic Benefit Claims (35 U.S.C. 120/121)
Reissue Claim Requirements
Reissue Patent Practice
35 U.S.C. § 120
AIA Effective Dates
Assignee as Applicant Signature
Consent of Assignee
Original Patent Requirement (Same Invention)
Reissue Application Filing
Reissue Claim Requirements
Reissue Oath/Declaration Content
Reissue Patent Practice
35 U.S.C. § 251
Amendments in Reissue
Column and Line References
Reissue Application Filing
37 CFR § 1.173
AIA Effective Dates
Reissue Application Filing
Reissue Oath/Declaration Content
37 CFR § 1.175
AIA Effective Dates37 CFR § 1.175(b)(1)
AIA Effective Dates
Reissue Oath/Declaration Content
37 CFR § 1.175(e)
Reissue Oath/Declaration Content37 CFR § 1.175(f)(1)
AIA Effective Dates
Reissue Oath/Declaration Content
37 CFR § 1.175(f)(2)
Reissue Application Filing
Restriction Requirement (MPEP 802-803)
37 CFR § 1.176(b)
Reissue Application Filing
Reissue Claim Requirements
Reissue Patent Practice
37 CFR § 1.177
Amendments in Reissue
Column and Line References
Reissue Application Filing
Reissue Filing Requirements
Reissue Patent Issuance
Reissue Patent Practice
Reissue and Reexamination
37 CFR § 1.177(a)
Reissue Application Filing
Reissue Patent Practice
37 CFR § 1.177(b)
35 U.S.C. 101 – Patent Eligibility
Double Patenting
Responding to 101 Rejections
Terminal Disclaimer Practice
37 CFR § 1.321(c)(3)
35 U.S.C. 101 – Patent Eligibility
Double Patenting
Responding to 101 Rejections
Terminal Disclaimer Practice
37 CFR § 1.321(d)(3)
Amendments in Reissue
Announcement of Reissue
Column and Line References
Reissue Filing Requirements
Reissue Patent Issuance
Reissue and Reexamination
37 CFR § 1.322
Reissue Application Filing37 CFR § 3.73
Double Patenting
Terminal Disclaimer Practice
37 CFR § 804.05
Consent of Assignee
Reissue Oath/Declaration Content
MPEP § 1410.02
AIA Effective Dates
Consent of Assignee
Reissue Oath/Declaration Content
MPEP § 1414
AIA Effective DatesMPEP § 1414.03
Reissue Application Filing
Reissue Oath/Declaration Content
Reissue Patent Practice
Restriction Requirement (MPEP 802-803)
MPEP § 1450
Copendency Requirement
Divisional Application Benefit
Reissue Claim Requirements
MPEP § 1460
Double Patenting
Terminal Disclaimer Practice
MPEP § 804
Amendments in Reissue
Column and Line References
Reissue Patent Issuance
Reissue and Reexamination
Form Paragraph § 10.19
Reissue Application FilingIn re Bauman, 683 F.2d 405, 409, 214 USPQ 585, 589 (CCPA 1982)
Assignee as Applicant Signature
Reissue Oath/Declaration Content
In re Berg, 140 F.3d 1428, 1435, 46 USPQ2d 1226, 1232 (Fed. Cir. 1998)
Reissue Oath/Declaration Content
Reissue Patent Practice
In re Graff, 111 F.3d 874, 42 USPQ2d 1471 (Fed. Cir. 1997)

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31