MPEP § 2285 — Copending Ex Parte Reexamination and Reissue Proceedings (Annotated Rules)

§2285 Copending Ex Parte Reexamination and Reissue Proceedings

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

This page consolidates and annotates all enforceable requirements under MPEP § 2285, 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.

Copending Ex Parte Reexamination and Reissue Proceedings

This section addresses Copending Ex Parte Reexamination and Reissue Proceedings. Primary authority: 35 U.S.C. 304, 35 U.S.C. 2251, and 37 CFR 1.178(b). Contains: 1 requirement, 1 prohibition, 6 guidance statements, 1 permission, and 4 other statements.

Key Rules

Topic

Reissue and Reexamination

9 rules
StatutoryInformativeAlways
[mpep-2285-14d8b4467e737bae3abe5fcc]
Decision on Merging Reissue and Ex Parte Reexamination Not Made Until After Reexamination Order
Note:
A decision to merge reissue application examination with ex parte reexamination or stay one proceeding is not made until after the mailing of a reexamination order and expiration of the reply period.

A decision whether or not to merge the reissue application examination and the ex parte reexamination proceeding, or to stay one of the two proceedings, will not be made prior to the mailing of an order to reexamine the patent pursuant to 37 CFR 1.525, and the expiration of the statement-reply period following the order to reexamine. Until such time, the examination of the reissue application will proceed. A determination on the request must not be delayed because of the existence of a copending reissue application, since 35 U.S.C. 304 and 37 CFR 1.515 require a determination within 3 months following the filing date of the request. See MPEP § 2241. If the decision on the request denies reexamination (MPEP § 2247), the examination of the reissue application should be continued. If reexamination is ordered (MPEP § 2246), the Central Reexamination Unit (CRU) Supervisory Patent Reexamination Specialist (SPRS) or Technology Center Quality Assurance Specialist (QAS) will await the filing of any statement under 37 CFR 1.530 and any reply under 37 CFR 1.535, or the expiration of the time for same (see MPEP § 2249 to § 2251). Thereafter, CRU SPRS or TC QAS should promptly notify OPLA that the proceedings are ready for consideration of merger. If any of the reexamination file, the reissue application, and the patent file are paper files, they should be hand delivered to OPLA at the time of the notification to OPLA.

Jump to MPEP Source · 37 CFR 1.525Reissue and ReexaminationReexamination OrderStatutory Authority for Examination
StatutoryRecommendedAlways
[mpep-2285-89cbca236306139df86faed1]
Continued Examination of Reissue Application After Denial of Reexamination
Note:
If the request for reexamination is denied, the examination of the reissue application must continue.

A decision whether or not to merge the reissue application examination and the ex parte reexamination proceeding, or to stay one of the two proceedings, will not be made prior to the mailing of an order to reexamine the patent pursuant to 37 CFR 1.525, and the expiration of the statement-reply period following the order to reexamine. Until such time, the examination of the reissue application will proceed. A determination on the request must not be delayed because of the existence of a copending reissue application, since 35 U.S.C. 304 and 37 CFR 1.515 require a determination within 3 months following the filing date of the request. See MPEP § 2241. If the decision on the request denies reexamination (MPEP § 2247), the examination of the reissue application should be continued. If reexamination is ordered (MPEP § 2246), the Central Reexamination Unit (CRU) Supervisory Patent Reexamination Specialist (SPRS) or Technology Center Quality Assurance Specialist (QAS) will await the filing of any statement under 37 CFR 1.530 and any reply under 37 CFR 1.535, or the expiration of the time for same (see MPEP § 2249 to § 2251). Thereafter, CRU SPRS or TC QAS should promptly notify OPLA that the proceedings are ready for consideration of merger. If any of the reexamination file, the reissue application, and the patent file are paper files, they should be hand delivered to OPLA at the time of the notification to OPLA.

Jump to MPEP Source · 37 CFR 1.525Reissue and ReexaminationStatutory Authority for ExaminationConcurrent Reissue Proceedings
StatutoryInformativeAlways
[mpep-2285-07fbfaee0b88129b8683d177]
Requirement for Reexamination Filing and Reply
Note:
The Central Reexamination Unit will await the filing of a statement under 37 CFR 1.530 or a reply under 37 CFR 1.535, or their expiration, before proceeding with reexamination after an order is issued.

A decision whether or not to merge the reissue application examination and the ex parte reexamination proceeding, or to stay one of the two proceedings, will not be made prior to the mailing of an order to reexamine the patent pursuant to 37 CFR 1.525, and the expiration of the statement-reply period following the order to reexamine. Until such time, the examination of the reissue application will proceed. A determination on the request must not be delayed because of the existence of a copending reissue application, since 35 U.S.C. 304 and 37 CFR 1.515 require a determination within 3 months following the filing date of the request. See MPEP § 2241. If the decision on the request denies reexamination (MPEP § 2247), the examination of the reissue application should be continued. If reexamination is ordered (MPEP § 2246), the Central Reexamination Unit (CRU) Supervisory Patent Reexamination Specialist (SPRS) or Technology Center Quality Assurance Specialist (QAS) will await the filing of any statement under 37 CFR 1.530 and any reply under 37 CFR 1.535, or the expiration of the time for same (see MPEP § 2249 to § 2251). Thereafter, CRU SPRS or TC QAS should promptly notify OPLA that the proceedings are ready for consideration of merger. If any of the reexamination file, the reissue application, and the patent file are paper files, they should be hand delivered to OPLA at the time of the notification to OPLA.

Jump to MPEP Source · 37 CFR 1.525Reissue and ReexaminationQuality Assurance Specialist ReviewCentral Reexamination Unit Processing
StatutoryRecommendedAlways
[mpep-2285-0cdf0a96281f23878fe8839f]
Paper Files Must Be Hand Delivered to OPLA
Note:
If any of the reexamination file, reissue application, or patent file are paper files, they should be hand delivered to OPLA at the time of notification.

A decision whether or not to merge the reissue application examination and the ex parte reexamination proceeding, or to stay one of the two proceedings, will not be made prior to the mailing of an order to reexamine the patent pursuant to 37 CFR 1.525, and the expiration of the statement-reply period following the order to reexamine. Until such time, the examination of the reissue application will proceed. A determination on the request must not be delayed because of the existence of a copending reissue application, since 35 U.S.C. 304 and 37 CFR 1.515 require a determination within 3 months following the filing date of the request. See MPEP § 2241. If the decision on the request denies reexamination (MPEP § 2247), the examination of the reissue application should be continued. If reexamination is ordered (MPEP § 2246), the Central Reexamination Unit (CRU) Supervisory Patent Reexamination Specialist (SPRS) or Technology Center Quality Assurance Specialist (QAS) will await the filing of any statement under 37 CFR 1.530 and any reply under 37 CFR 1.535, or the expiration of the time for same (see MPEP § 2249 to § 2251). Thereafter, CRU SPRS or TC QAS should promptly notify OPLA that the proceedings are ready for consideration of merger. If any of the reexamination file, the reissue application, and the patent file are paper files, they should be hand delivered to OPLA at the time of the notification to OPLA.

Jump to MPEP Source · 37 CFR 1.525Reissue and ReexaminationConcurrent Reissue ProceedingsEx Parte Reexamination
StatutoryRecommendedAlways
[mpep-2285-bccf5556e39e69807790cf36]
Notification of Reissue Application During Reexamination Pendency
Note:
OPLA must be notified promptly after a reissue application reaches the TC that merger with reexamination proceedings is ready for consideration.

If a reissue application is filed during the pendency of a reexamination proceeding, OPLA should be notified as promptly as possible after the reissue application reaches the TC, that the proceedings are ready for consideration of merger. If any of the reexamination file, the reissue application, and the patent file are paper files, they should be hand delivered to the OPLA at the time of the notification to OPLA.

Jump to MPEP Source · 37 CFR 1.565Reissue and ReexaminationConcurrent Reissue ProceedingsEx Parte Reexamination
StatutoryRecommendedAlways
[mpep-2285-410bb49393cf301d28ec987f]
Paper Files Must Be Hand Delivered to OPLA
Note:
If any of the reexamination file, reissue application, or patent file are paper files, they must be hand delivered to OPLA at the time of notification.

If a reissue application is filed during the pendency of a reexamination proceeding, OPLA should be notified as promptly as possible after the reissue application reaches the TC, that the proceedings are ready for consideration of merger. If any of the reexamination file, the reissue application, and the patent file are paper files, they should be hand delivered to the OPLA at the time of the notification to OPLA.

Jump to MPEP Source · 37 CFR 1.565Reissue and ReexaminationConcurrent Reissue ProceedingsEx Parte Reexamination
StatutoryRequiredAlways
[mpep-2285-ffb397bebc342bf31d9cf1ba]
Determination Delayed Until Reissue Patent Grants
Note:
The determination on a reexamination request should be delayed until the reissue patent is granted, then based on the claims in the reissue patent rather than the original patent claims.

If the reissue patent will issue before the determination on the reexamination request must be made (e.g., within three months from the request’s filing date), the determination on the request should normally be delayed until after the granting of the reissue patent; and then the determination should be made on the basis of the claims in the reissue patent. The reexamination, if ordered, would then be on the reissue patent claims rather than the original patent claims. Since the reissue application would no longer be pending, the reexamination would be processed in a normal manner.

Jump to MPEP Source · 37 CFR 1.565Reissue and ReexaminationConcurrent Reissue ProceedingsEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2285-f7600dd485e6af2e27aa8706]
Reexamination Based on Reissue Patent Claims
Note:
If a reissue patent is granted before the reexamination decision, the reexamination must be based on the claims of the reissued patent rather than the original claims.

If the reissue patent will issue before the determination on the reexamination request must be made (e.g., within three months from the request’s filing date), the determination on the request should normally be delayed until after the granting of the reissue patent; and then the determination should be made on the basis of the claims in the reissue patent. The reexamination, if ordered, would then be on the reissue patent claims rather than the original patent claims. Since the reissue application would no longer be pending, the reexamination would be processed in a normal manner.

Jump to MPEP Source · 37 CFR 1.565Reissue and ReexaminationReexamination OrderConcurrent Reissue Proceedings
StatutoryInformativeAlways
[mpep-2285-e739f03842bea9ed947f1a5b]
Reexamination on Reissued Claims Processed Normally
Note:
If the reissue patent issues before the reexamination decision, the reexamination will be based on the new claims rather than the original ones.

If the reissue patent will issue before the determination on the reexamination request must be made (e.g., within three months from the request’s filing date), the determination on the request should normally be delayed until after the granting of the reissue patent; and then the determination should be made on the basis of the claims in the reissue patent. The reexamination, if ordered, would then be on the reissue patent claims rather than the original patent claims. Since the reissue application would no longer be pending, the reexamination would be processed in a normal manner.

Jump to MPEP Source · 37 CFR 1.565Reissue and ReexaminationConcurrent Reissue ProceedingsReissue Patent Practice
Topic
3 rules
Topic

Statutory Authority for Examination

1 rules
StatutoryInformativeAlways
[mpep-2285-c342417e6dc990f4d05f8a1e]
Examination of Reissue Application Continues Until Reexamination Order
Note:
The examination of the reissue application will continue until an order to reexamine is issued and the reply period expires.

A decision whether or not to merge the reissue application examination and the ex parte reexamination proceeding, or to stay one of the two proceedings, will not be made prior to the mailing of an order to reexamine the patent pursuant to 37 CFR 1.525, and the expiration of the statement-reply period following the order to reexamine. Until such time, the examination of the reissue application will proceed. A determination on the request must not be delayed because of the existence of a copending reissue application, since 35 U.S.C. 304 and 37 CFR 1.515 require a determination within 3 months following the filing date of the request. See MPEP § 2241. If the decision on the request denies reexamination (MPEP § 2247), the examination of the reissue application should be continued. If reexamination is ordered (MPEP § 2246), the Central Reexamination Unit (CRU) Supervisory Patent Reexamination Specialist (SPRS) or Technology Center Quality Assurance Specialist (QAS) will await the filing of any statement under 37 CFR 1.530 and any reply under 37 CFR 1.535, or the expiration of the time for same (see MPEP § 2249 to § 2251). Thereafter, CRU SPRS or TC QAS should promptly notify OPLA that the proceedings are ready for consideration of merger. If any of the reexamination file, the reissue application, and the patent file are paper files, they should be hand delivered to OPLA at the time of the notification to OPLA.

Jump to MPEP Source · 37 CFR 1.525Statutory Authority for ExaminationExamination ProceduresReissue Patent Practice
Topic

Reexamination Order

1 rules
StatutoryProhibitedAlways
[mpep-2285-3f0498b1489b7c195f70078a]
Timely Determination Required Despite Copending Reissue Application
Note:
A determination on the request must be made within 3 months of filing, regardless of a copending reissue application.

A decision whether or not to merge the reissue application examination and the ex parte reexamination proceeding, or to stay one of the two proceedings, will not be made prior to the mailing of an order to reexamine the patent pursuant to 37 CFR 1.525, and the expiration of the statement-reply period following the order to reexamine. Until such time, the examination of the reissue application will proceed. A determination on the request must not be delayed because of the existence of a copending reissue application, since 35 U.S.C. 304 and 37 CFR 1.515 require a determination within 3 months following the filing date of the request. See MPEP § 2241. If the decision on the request denies reexamination (MPEP § 2247), the examination of the reissue application should be continued. If reexamination is ordered (MPEP § 2246), the Central Reexamination Unit (CRU) Supervisory Patent Reexamination Specialist (SPRS) or Technology Center Quality Assurance Specialist (QAS) will await the filing of any statement under 37 CFR 1.530 and any reply under 37 CFR 1.535, or the expiration of the time for same (see MPEP § 2249 to § 2251). Thereafter, CRU SPRS or TC QAS should promptly notify OPLA that the proceedings are ready for consideration of merger. If any of the reexamination file, the reissue application, and the patent file are paper files, they should be hand delivered to OPLA at the time of the notification to OPLA.

Jump to MPEP Source · 37 CFR 1.525Reexamination OrderApplication Requisites for ExaminationEx Parte Reexamination
Topic

Quality Assurance Specialist Review

1 rules
StatutoryRecommendedAlways
[mpep-2285-9fd1d32f81c42b44eb7eeda7]
Notification for Merger Consideration Required
Note:
CRU SPRS or TC QAS must promptly inform OPLA that the proceedings are ready for merger consideration after awaiting any required statements and replies.

A decision whether or not to merge the reissue application examination and the ex parte reexamination proceeding, or to stay one of the two proceedings, will not be made prior to the mailing of an order to reexamine the patent pursuant to 37 CFR 1.525, and the expiration of the statement-reply period following the order to reexamine. Until such time, the examination of the reissue application will proceed. A determination on the request must not be delayed because of the existence of a copending reissue application, since 35 U.S.C. 304 and 37 CFR 1.515 require a determination within 3 months following the filing date of the request. See MPEP § 2241. If the decision on the request denies reexamination (MPEP § 2247), the examination of the reissue application should be continued. If reexamination is ordered (MPEP § 2246), the Central Reexamination Unit (CRU) Supervisory Patent Reexamination Specialist (SPRS) or Technology Center Quality Assurance Specialist (QAS) will await the filing of any statement under 37 CFR 1.530 and any reply under 37 CFR 1.535, or the expiration of the time for same (see MPEP § 2249 to § 2251). Thereafter, CRU SPRS or TC QAS should promptly notify OPLA that the proceedings are ready for consideration of merger. If any of the reexamination file, the reissue application, and the patent file are paper files, they should be hand delivered to OPLA at the time of the notification to OPLA.

Jump to MPEP Source · 37 CFR 1.525Quality Assurance Specialist ReviewCentral Reexamination Unit ProcessingAllowance Quality Review
Topic

Reexamination Certificate

1 rules
StatutoryPermittedAlways
[mpep-2285-d99bbf2c70845da198cfed3a]
Certificate Issuable After Reexamination Even With Pending Applications
Note:
The Office can issue a certificate at the end of a reexamination even if there are concurrent reissue applications or other reexaminations pending.

The Office may in certain situations issue a certificate at the termination of a reexamination prosecution, even if a copending reissue application or another reexamination request has already been filed.

Jump to MPEP Source · 37 CFR 1.565Reexamination CertificateReissue and ReexaminationConclusion of Ex Parte Reexamination
Topic

Types of Claim Status in Reissue

1 rules
StatutoryRecommendedAlways
[mpep-2285-fc1e7b413ef79cb06a648314]
Determination on Reissue Patent Claims
Note:
The determination in a reexamination must be based on the claims of the reissued patent, not the original patent.

Where a reissue patent has been issued, the determination on the request for reexamination should specifically point out that the determination has been made on the claims of the reissue patent and not on the claims of the original patent. Any amendment made in the reexamination proceeding should treat the changes made by the reissue as the text of the patent, and all bracketing and underlining made with respect to the patent as changed by the reissue. Note that the reissue claims used as the starting point in the reexamination proceeding must be presented in the reexamination proceeding as a “clean copy.” Thus, words bracketed in the reissue patent claim(s) would not appear at all in the reexamination clean copy of the claim(s). Also, words that were added via the reissue patent will appear in italics in the reissue patent, but must appear in plain format in the reexamination clean copy of the claim(s).

Jump to MPEP Source · 37 CFR 1.565Types of Claim Status in ReissueClaim Status Identifiers in ReissueChanges Relative to Patent
Topic

Reissue Amendment Format

1 rules
StatutoryRecommendedAlways
[mpep-2285-356517c3cee168e90105a3e3]
Amendments Treat Reissue Text
Note:
Any amendment in reexamination must reflect changes from the reissued patent, with bracketed and underlined text adjusted accordingly.

Where a reissue patent has been issued, the determination on the request for reexamination should specifically point out that the determination has been made on the claims of the reissue patent and not on the claims of the original patent. Any amendment made in the reexamination proceeding should treat the changes made by the reissue as the text of the patent, and all bracketing and underlining made with respect to the patent as changed by the reissue. Note that the reissue claims used as the starting point in the reexamination proceeding must be presented in the reexamination proceeding as a “clean copy.” Thus, words bracketed in the reissue patent claim(s) would not appear at all in the reexamination clean copy of the claim(s). Also, words that were added via the reissue patent will appear in italics in the reissue patent, but must appear in plain format in the reexamination clean copy of the claim(s).

Jump to MPEP Source · 37 CFR 1.565Reissue Amendment FormatReissue and ReexaminationForm of Reissue Patent
Topic

Request Content Requirements

1 rules
StatutoryRequiredAlways
[mpep-2285-4ded854892566a49d5768f33]
Reissue Claims Must Be Presented as Clean Copies in Reexamination
Note:
The reissue claims used as the starting point in the reexamination proceeding must be presented without bracketed words and with added words in plain format.

Where a reissue patent has been issued, the determination on the request for reexamination should specifically point out that the determination has been made on the claims of the reissue patent and not on the claims of the original patent. Any amendment made in the reexamination proceeding should treat the changes made by the reissue as the text of the patent, and all bracketing and underlining made with respect to the patent as changed by the reissue. Note that the reissue claims used as the starting point in the reexamination proceeding must be presented in the reexamination proceeding as a “clean copy.” Thus, words bracketed in the reissue patent claim(s) would not appear at all in the reexamination clean copy of the claim(s). Also, words that were added via the reissue patent will appear in italics in the reissue patent, but must appear in plain format in the reexamination clean copy of the claim(s).

Jump to MPEP Source · 37 CFR 1.565Request Content RequirementsClaim AmendmentsReissue and Reexamination
Topic

First Office Action on Merits

1 rules
StatutoryRecommendedAlways
[mpep-2285-d47d7bb10dab1d069775aaf9]
First Office Action Based on Reissue Claims
Note:
The first office action in reexamination must be based on the claims of a reissued patent if one issues after an ex parte reexamination is ordered.

If a reissue patent issues on the patent under reexamination after reexamination is ordered, the next action from the examiner in the reexamination should point out that further proceedings in the reexamination will be based on the claims of the reissue patent and not on the patent surrendered. Form paragraph 22.05 may be used in the Office action.

Jump to MPEP Source · 37 CFR 1.565First Office Action on MeritsReissue and ReexaminationReexamination Order
Topic

Form Paragraph Usage

1 rules
StatutoryPermittedAlways
[mpep-2285-c958ed7b8df7aeae02058b63]
Form Paragraph 22.05 May Be Used in Office Action
Note:
The examiner may use Form paragraph 22.05 in the office action when a reissue patent issues during reexamination.

If a reissue patent issues on the patent under reexamination after reexamination is ordered, the next action from the examiner in the reexamination should point out that further proceedings in the reexamination will be based on the claims of the reissue patent and not on the patent surrendered. Form paragraph 22.05 may be used in the Office action.

Jump to MPEP Source · 37 CFR 1.565Form Paragraph UsageForm ParagraphsForm of Reissue Patent

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.

¶ 22.05 ¶ 22.05 Reexamination (Ex Parte or Inter Partes) Based on Reissue Claims

Citations

Primary topicCitation
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
35 U.S.C. § 2251
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
35 U.S.C. § 304
Consent of Assignee37 CFR § 1.178(b)
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
37 CFR § 1.515
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
37 CFR § 1.525
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
37 CFR § 1.530
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
37 CFR § 1.535
Consent of Assignee37 CFR § 1.565(a)
Consent of AssigneeMPEP § 1418
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
MPEP § 2241
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
MPEP § 2246
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
MPEP § 2247
Quality Assurance Specialist Review
Reexamination Order
Reissue and Reexamination
Statutory Authority for Examination
MPEP § 2249
First Office Action on Merits
Form Paragraph Usage
Form Paragraph § 22.05

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