MPEP § 2283 — Multiple Copending Ex Parte Reexamination Proceedings (Annotated Rules)

§2283 Multiple Copending Ex Parte Reexamination Proceedings

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

This page consolidates and annotates all enforceable requirements under MPEP § 2283, 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.

Multiple Copending Ex Parte Reexamination Proceedings

This section addresses Multiple Copending Ex Parte Reexamination Proceedings. Primary authority: 35 U.S.C. 305, 35 U.S.C. 112, and 37 CFR 1.565. Contains: 1 requirement, 1 prohibition, 10 guidance statements, 2 permissions, and 5 other statements.

Key Rules

Topic

Merged Reexamination Proceedings

20 rules
StatutoryInformativeAlways
[mpep-2283-73c4027d32c89dadb050e112]
Requirement for Multiple Copending Ex Parte Reexamination Proceedings
Note:
This rule outlines the requirements for multiple copending ex parte reexamination requests on the same patent, none of which are inter partes requests.

This section discusses multiple copending reexamination requests which are filed on the same patent, where none of the requests is an inter partes request. If one of the multiple copending reexamination requests is an inter partes request, see MPEP § 2686.01.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2283-db339df9c0a82184e8693490]
If One Reexamination Is Inter Partes, See MPEP §2686.01
Note:
This rule requires that if one of the multiple copending reexamination requests is an inter partes request, refer to MPEP §2686.01 for further guidance.

This section discusses multiple copending reexamination requests which are filed on the same patent, where none of the requests is an inter partes request. If one of the multiple copending reexamination requests is an inter partes request, see MPEP § 2686.01.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2283-f32aa87ed0bb05830a93b4c9]
Decision on Combining Reexaminations Made by CRU Director
Note:
The CRU Director, or a delegate, decides whether to combine reexaminations after the later filed request is actually ordered.

If the second or subsequent request is granted, the decision on whether or not to combine the proceedings will be made by the Central Reexamination Unit (CRU) Director where the reexamination is pending. The CRU Director may delegate this to the CRU Supervisory Patent Reexamination Specialist (SPRS). No decision on combining the reexaminations should be made until after reexamination is actually ordered in the later filed request for reexamination. See subsection I below.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte ReexaminationCentral Reexamination Unit Processing
StatutoryInformativeAlways
[mpep-2283-d15dde37f42ede2f254678ae]
Merged Reexamination Proceedings Usually Required
Note:
When a second reexamination request is filed while the first is pending, proceedings are usually merged unless the Office decides otherwise to expedite statutory mandates.

Where a second request for reexamination is filed and reexamination is ordered, and a first reexamination proceeding is pending, 37 CFR 1.565(c) provides that the proceedings will usually be merged. However, a decision not to merge is within the sole discretion of the Office to facilitate/carry out the statutory mandate of 35 U.S.C. 305 to conduct reexamination proceedings with “special dispatch.”

Jump to MPEP Source · 37 CFR 1.565(c)Merged Reexamination ProceedingsReexamination OrderEx Parte Reexamination
StatutoryRecommendedAlways
[mpep-2283-3c8561d66d636c9bb3adfe7e]
Continuation at Advanced Point for First Proceeding
Note:
If reexamination proceedings are merged, prosecution continues from the most advanced point of the first proceeding. If a final rejection has been issued in the first proceeding and new grounds of rejection are presented, prosecution will be reopened.

Where a second request for reexamination is filed while a first reexamination proceeding is pending, the second request is decided based on the claims in effect at the time of the determination (see 37 CFR 1.515(a)), and if reexamination is ordered, the patent owner and the second requester are given an opportunity to file a statement and reply, respectively. It is then considered whether the proceedings will, or will not, be merged. If the proceedings are merged, the prosecution will then continue at the most advanced point possible for the first proceeding. It should be noted that if a final rejection has been issued in the first proceeding, prosecution will be ordinarily be reopened where any of the new patents or printed publications presented in the second request are applied to the merged proceeding in a new ground of rejection.

Jump to MPEP Source · 37 CFR 1.515(a))Merged Reexamination ProceedingsEx Parte ReexaminationRequest by Patent Owner
StatutoryInformativeAlways
[mpep-2283-7fdcba8437d6c4af7841a71c]
Patent Owner Response Before Final Action
Note:
The patent owner must be given a chance to respond to new rejections in a merged reexamination proceeding before the action is finalized.

The patent owner will be provided with an opportunity to respond to any new rejection in a merged reexamination proceeding prior to the action being made final. See MPEP § 2271. If the reexamination proceedings are merged, a single certificate will be issued based upon the merged proceedings. See 37 CFR 1.565(c).

Jump to MPEP Source · 37 CFR 1.565(c)Merged Reexamination ProceedingsEx Parte ReexaminationReexamination Certificate
StatutoryPermittedAlways
[mpep-2283-ffe48f338660f6555e950328]
Suspension of Ex Parte Reexamination Proceeding
Note:
Allows for a short specified period to merge proceedings by granting time for patent owner’s statement and requester’s reply.

It may also be desirable in certain situations to suspend a proceeding for a short and specified period of time. For example, a suspension of a first reexamination proceeding may be issued to allow time for the patent owner’s statement and the requester’s reply in a second proceeding prior to merging. A suspension will only be granted in extraordinary instances, because of the statutory requirements that examination proceed with “special dispatch.” Suspension will not be granted when there is an outstanding Office action.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte ReexaminationInterviews in Reexamination
StatutoryRecommendedAlways
[mpep-2283-264b705adcd3b56ce8bbc37e]
Merged Reexamination Proceedings for Single Patent
Note:
When two requests for reexamination are filed for a single patent, these must be combined into one proceeding.

The following guidelines should be observed when two requests for reexamination directed to a single patent have been filed.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryRecommendedAlways
[mpep-2283-46de074077576e9130cad492]
Second Request Must Be Assigned to Same Examiner as First
Note:
The second ex parte reexamination request should be processed quickly and assigned to the same examiner who handles the first request.

The second request (i.e., Request 2) should be processed as quickly as possible and assigned to the same examiner to whom the first request (i.e., Request 1) is assigned. If neither request for reexamination has been ordered, the examiner must address each request within three months of its filing date. If Request 1 has been ordered, Request 2 should be decided immediately. If Request 2 is denied, ex parte prosecution of Request 1 should continue. If Request 2 is granted, the order in the second proceeding should be mailed immediately. The two proceedings should not be acted upon until the patent owner’s statement and any reply by the requester have been received in Request 2, or until the time for filing same expires. Then, the CRU Director or the CRU Director’s delegate will prepare a decision whether to merge the two proceedings.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte ReexaminationRequest by Patent Owner
StatutoryRecommendedAlways
[mpep-2283-4c096cd1c2500501cc2af6a6]
If Request 2 Denied, Continue Ex Parte Prosecution of Request 1
Note:
If the second request for reexamination is denied, the examiner must continue with ex parte prosecution of the first request.

The second request (i.e., Request 2) should be processed as quickly as possible and assigned to the same examiner to whom the first request (i.e., Request 1) is assigned. If neither request for reexamination has been ordered, the examiner must address each request within three months of its filing date. If Request 1 has been ordered, Request 2 should be decided immediately. If Request 2 is denied, ex parte prosecution of Request 1 should continue. If Request 2 is granted, the order in the second proceeding should be mailed immediately. The two proceedings should not be acted upon until the patent owner’s statement and any reply by the requester have been received in Request 2, or until the time for filing same expires. Then, the CRU Director or the CRU Director’s delegate will prepare a decision whether to merge the two proceedings.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte ReexaminationRequest by Patent Owner
StatutoryInformativeAlways
[mpep-2283-0f587e547bdea6f40953e831]
Merged Reexamination Proceedings Must Maintain Separate Files
Note:
The decision requires that both files in merged reexamination proceedings be maintained as separate complete files.

A decision by the CRU Director to merge the reexamination proceedings should include a requirement that the patent owner maintain identical claims in both files. It will further require that responses by the patent owner, and any other paper filed in the merged proceeding, must consist of a single response, addressed to both files, filed in duplicate, each bearing a signature and containing identifying data for both files, for entry in both files. The decision will point out that both files will be maintained as separate complete files. Where the claims are not the same in both files, the decision of merger will indicate at its conclusion that the patent owner is given one month to provide an amendment to make the claims the same in each file. Where the claims are already the same in both files, the decision will indicate at its conclusion that an Office action will be mailed in due course, and that the patent owner need not take any action at present. The decision of merger will be mailed immediately.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte ReexaminationAmendments Adding New Matter
StatutoryInformativeAlways
[mpep-2283-b58818a06c566ad5c7a79578]
Merged Reexamination Proceedings Decision Must Be Mailed Immediately
Note:
The decision to merge reexamination proceedings must be mailed immediately, indicating requirements for maintaining identical claims and responding.

A decision by the CRU Director to merge the reexamination proceedings should include a requirement that the patent owner maintain identical claims in both files. It will further require that responses by the patent owner, and any other paper filed in the merged proceeding, must consist of a single response, addressed to both files, filed in duplicate, each bearing a signature and containing identifying data for both files, for entry in both files. The decision will point out that both files will be maintained as separate complete files. Where the claims are not the same in both files, the decision of merger will indicate at its conclusion that the patent owner is given one month to provide an amendment to make the claims the same in each file. Where the claims are already the same in both files, the decision will indicate at its conclusion that an Office action will be mailed in due course, and that the patent owner need not take any action at present. The decision of merger will be mailed immediately.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte ReexaminationAmendments Adding New Matter
StatutoryRecommendedAlways
[mpep-2283-2d429cda87472494a97b6c1f]
Request 1 Must Be Ready for Ex Parte Prosecution When Request 2 Received
Note:
When Request 2 is received before the ex parte prosecution stage begins in Request 1, Request 1 must be processed to readiness for ex parte action.

If the ex parte prosecution stage has not yet begun in Request 1 when Request 2 is received, Request 1 should be processed to the point where it is ready for ex parte prosecution. Then, Request 1 is normally not acted upon until Request 2 is granted and is ready for ex parte action following the statement and reply. Thereafter, the two proceedings would be merged. However, if Request 2 is denied, there would be no merger and prosecution will be carried out solely on Request 1. Note that Request 2 should be determined on its own merits and should not rely on nor refer to the decision issued in Request 1.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2283-ee596e954a1a253eba29d7c5]
Ex Parte Request 1 Waits on Request 2
Note:
Request 1 is not acted upon until Request 2 is granted and ready for ex parte action after the statement and reply.

If the ex parte prosecution stage has not yet begun in Request 1 when Request 2 is received, Request 1 should be processed to the point where it is ready for ex parte prosecution. Then, Request 1 is normally not acted upon until Request 2 is granted and is ready for ex parte action following the statement and reply. Thereafter, the two proceedings would be merged. However, if Request 2 is denied, there would be no merger and prosecution will be carried out solely on Request 1. Note that Request 2 should be determined on its own merits and should not rely on nor refer to the decision issued in Request 1.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2283-77feed99991ca1207f83670e]
Merger of Reexamination Proceedings
Note:
If Request 2 is granted, both requests will be merged for prosecution; otherwise, only Request 1 will proceed.

If the ex parte prosecution stage has not yet begun in Request 1 when Request 2 is received, Request 1 should be processed to the point where it is ready for ex parte prosecution. Then, Request 1 is normally not acted upon until Request 2 is granted and is ready for ex parte action following the statement and reply. Thereafter, the two proceedings would be merged. However, if Request 2 is denied, there would be no merger and prosecution will be carried out solely on Request 1. Note that Request 2 should be determined on its own merits and should not rely on nor refer to the decision issued in Request 1.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryRecommendedAlways
[mpep-2283-7433877a4f7ab14f7da5a6fa]
Request 2 Must Be Evaluated Independently
Note:
Request 2 should be assessed on its own merits without referencing the decision of Request 1.

If the ex parte prosecution stage has not yet begun in Request 1 when Request 2 is received, Request 1 should be processed to the point where it is ready for ex parte prosecution. Then, Request 1 is normally not acted upon until Request 2 is granted and is ready for ex parte action following the statement and reply. Thereafter, the two proceedings would be merged. However, if Request 2 is denied, there would be no merger and prosecution will be carried out solely on Request 1. Note that Request 2 should be determined on its own merits and should not rely on nor refer to the decision issued in Request 1.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryRecommendedAlways
[mpep-2283-38eef7c6aa7c84668bb060cc]
More Than Two Reexamination Requests for a Single Patent
Note:
The guidelines should be extended to cover situations where more than two requests for reexamination are filed for the same patent.

The above guidelines should be extended to those situations where more than two requests for reexamination are filed for a single patent.

Jump to MPEP Source · 37 CFR 1.565Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2283-1a38f7a6dd8f82d8291d5589]
Office Will Merge Reexamination Proceedings Sua Sponte
Note:
The Office will generally decide on its own to merge multiple reexamination proceedings without requiring a petition from the parties.

No petition to merge multiple reexamination proceedings is necessary since the Office will generally, sua sponte, make a decision as to whether it is appropriate to merge the multiple reexamination proceedings. If any petition to merge the proceedings is filed prior to the determination (37 CFR 1.515) and order to reexamine (37 CFR 1.525) on the second request, it will not be considered but will be returned to the party submitting the same by the CRU Director. The decision expunging such a premature petition will be made of record in both reexamination files. See MPEP § 2267.

Jump to MPEP Source · 37 CFR 1.515)Merged Reexamination ProceedingsEx Parte ReexaminationCentral Reexamination Unit Processing
StatutoryInformativeAlways
[mpep-2283-bec66b391f874b0f098581b1]
Premature Petition to Merge Reexamination Proceedings Not Considered
Note:
A petition to merge multiple reexamination proceedings filed before the Office's determination or order will not be considered and will be returned.

No petition to merge multiple reexamination proceedings is necessary since the Office will generally, sua sponte, make a decision as to whether it is appropriate to merge the multiple reexamination proceedings. If any petition to merge the proceedings is filed prior to the determination (37 CFR 1.515) and order to reexamine (37 CFR 1.525) on the second request, it will not be considered but will be returned to the party submitting the same by the CRU Director. The decision expunging such a premature petition will be made of record in both reexamination files. See MPEP § 2267.

Jump to MPEP Source · 37 CFR 1.515)Merged Reexamination ProceedingsEx Parte ReexaminationCentral Reexamination Unit Processing
StatutoryInformativeAlways
[mpep-2283-684274b350d4ad6c65648e5b]
Office Will Sua Sponte Consider Actions After Concurrent Reexamination Notification
Note:
The Office will consider any necessary actions after being notified of concurrent reexamination proceedings and after merger or suspension options are ripe.

While the patent owner can file a petition to merge the proceedings at any time after the order to reexamine (37 CFR 1.525) on the second request, the better practice is to include any such petition with the patent owner’s statement under 37 CFR 1.530 or subsequent thereto in the event the CRU Director has not acted prior to that date to merge the multiple reexamination proceedings. The third party requester of a reexamination proceeding (reexamination # 1) does not have a right to file a petition under 37 CFR 1.182 to merge that reexamination proceeding with another reexamination proceeding (reexamination # 2), where that reexamination third party requester does not have any standing to request relief with respect to the other reexamination proceeding (reexamination # 2). No such standing is provided for anywhere in the statute. Instead of filing a petition under 37 CFR 1.182 to merge the reexamination proceedings, the third party requester may file a notification of concurrent proceedings pursuant to MPEP § 2282. After being notified of the existence of the concurrent reexamination proceedings and after consideration of the merger and suspension options becomes ripe, the Office would sua sponte consider any action to be taken. The requester does have the right to file a petition under 37 CFR 1.182 to stay the reexamination proceeding that it requested.

Jump to MPEP Source · 37 CFR 1.525)Merged Reexamination ProceedingsEx Parte ReexaminationThird Party Requester Rights
Topic

Central Reexamination Unit Processing

6 rules
StatutoryInformativeAlways
[mpep-2283-121907b9091414328cc5df41]
Decision on Combining Reexaminations Made by CRU Director
Note:
The CRU Director decides whether to combine reexamination proceedings after the second or subsequent request is granted.

If the second or subsequent request is granted, the decision on whether or not to combine the proceedings will be made by the Central Reexamination Unit (CRU) Director where the reexamination is pending. The CRU Director may delegate this to the CRU Supervisory Patent Reexamination Specialist (SPRS). No decision on combining the reexaminations should be made until after reexamination is actually ordered in the later filed request for reexamination. See subsection I below.

Jump to MPEP Source · 37 CFR 1.565Central Reexamination Unit ProcessingEx Parte ReexaminationMerged Reexamination Proceedings
StatutoryPermittedAlways
[mpep-2283-8369de8dbf41d18773c3011b]
CRU Director Can Delegate Decision to SPRS
Note:
The CRU Director may delegate the decision on whether to combine proceedings to the CRU Supervisory Patent Reexamination Specialist if a second or subsequent request for reexamination is granted.

If the second or subsequent request is granted, the decision on whether or not to combine the proceedings will be made by the Central Reexamination Unit (CRU) Director where the reexamination is pending. The CRU Director may delegate this to the CRU Supervisory Patent Reexamination Specialist (SPRS). No decision on combining the reexaminations should be made until after reexamination is actually ordered in the later filed request for reexamination. See subsection I below.

Jump to MPEP Source · 37 CFR 1.565Central Reexamination Unit ProcessingEx Parte ReexaminationMerged Reexamination Proceedings
StatutoryInformativeAlways
[mpep-2283-11f552e99e79334182c6a3fe]
CRU Director Decides on Merging Two Ex Parte Reexamination Proceedings
Note:
The CRU Director or delegate will prepare a decision to merge two concurrent ex parte reexamination proceedings after receiving the patent owner’s statement and any requester reply.

The second request (i.e., Request 2) should be processed as quickly as possible and assigned to the same examiner to whom the first request (i.e., Request 1) is assigned. If neither request for reexamination has been ordered, the examiner must address each request within three months of its filing date. If Request 1 has been ordered, Request 2 should be decided immediately. If Request 2 is denied, ex parte prosecution of Request 1 should continue. If Request 2 is granted, the order in the second proceeding should be mailed immediately. The two proceedings should not be acted upon until the patent owner’s statement and any reply by the requester have been received in Request 2, or until the time for filing same expires. Then, the CRU Director or the CRU Director’s delegate will prepare a decision whether to merge the two proceedings.

Jump to MPEP Source · 37 CFR 1.565Central Reexamination Unit ProcessingEx Parte ReexaminationMerged Reexamination Proceedings
StatutoryRecommendedAlways
[mpep-2283-579cf2c985961a03681d2a55]
CRU Must Prepare Concurrent Reexamination Files Before Release
Note:
The Central Reexamination Unit must prepare the files of concurrent ex parte reexamination proceedings according to MPEP § 2287 guidelines before releasing them to Office of Data Management.

When a “Notice Of Intent To Issue Ex Parte Reexamination Certificate” (NIRC) is appropriate, a notice will be printed for the merged proceeding and scanned into the files of the merged proceeding. Both reexamination files will then be processed. The TC or the CRU should prepare the file of the concurrent proceedings in the manner specified in MPEP § 2287 before release to Office of Data Management.

Jump to MPEP Source · 37 CFR 1.565Central Reexamination Unit ProcessingMerged Reexamination ProceedingsEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2283-83eb32ecfcbc862cf938dcfc]
Premature Petition to Merge Not Considered
Note:
A petition to merge proceedings filed before the determination and reexamination order on the second request will be returned without consideration.

No petition to merge multiple reexamination proceedings is necessary since the Office will generally, sua sponte, make a decision as to whether it is appropriate to merge the multiple reexamination proceedings. If any petition to merge the proceedings is filed prior to the determination (37 CFR 1.515) and order to reexamine (37 CFR 1.525) on the second request, it will not be considered but will be returned to the party submitting the same by the CRU Director. The decision expunging such a premature petition will be made of record in both reexamination files. See MPEP § 2267.

Jump to MPEP Source · 37 CFR 1.515)Central Reexamination Unit ProcessingReexamination OrderEx Parte Reexamination
StatutoryPermittedAlways
[mpep-2283-194e1c80076f9437983b5278]
Patent Owner Should Include Petition with Statement When CRU Director Has Not Merged Proceedings
Note:
The patent owner should include a petition to merge proceedings in their statement if the CRU Director has not yet acted on merging multiple reexamination proceedings.

While the patent owner can file a petition to merge the proceedings at any time after the order to reexamine (37 CFR 1.525) on the second request, the better practice is to include any such petition with the patent owner’s statement under 37 CFR 1.530 or subsequent thereto in the event the CRU Director has not acted prior to that date to merge the multiple reexamination proceedings. The third party requester of a reexamination proceeding (reexamination # 1) does not have a right to file a petition under 37 CFR 1.182 to merge that reexamination proceeding with another reexamination proceeding (reexamination # 2), where that reexamination third party requester does not have any standing to request relief with respect to the other reexamination proceeding (reexamination # 2). No such standing is provided for anywhere in the statute. Instead of filing a petition under 37 CFR 1.182 to merge the reexamination proceedings, the third party requester may file a notification of concurrent proceedings pursuant to MPEP § 2282. After being notified of the existence of the concurrent reexamination proceedings and after consideration of the merger and suspension options becomes ripe, the Office would sua sponte consider any action to be taken. The requester does have the right to file a petition under 37 CFR 1.182 to stay the reexamination proceeding that it requested.

Jump to MPEP Source · 37 CFR 1.525)Central Reexamination Unit ProcessingReexamination OrderPatent Owner Statement
Topic

Ex Parte Reexamination

5 rules
StatutoryInformativeAlways
[mpep-2283-6cd7251cc9d17e1b39f0b8a8]
Both Reexamination Files Processed After NIRC
Note:
After a Notice Of Intent To Issue Ex Parte Reexamination Certificate is appropriate, both reexamination files will be processed.

When a “Notice Of Intent To Issue Ex Parte Reexamination Certificate” (NIRC) is appropriate, a notice will be printed for the merged proceeding and scanned into the files of the merged proceeding. Both reexamination files will then be processed. The TC or the CRU should prepare the file of the concurrent proceedings in the manner specified in MPEP § 2287 before release to Office of Data Management.

Jump to MPEP Source · 37 CFR 1.565Ex Parte ReexaminationNotice of Intent to Issue Reexamination Certificate (NIRC)Reexamination Certificate
StatutoryInformativeAlways
[mpep-2283-7a906e9c2dba0c9105a559b6]
Special Dispatch for Reexaminations
Note:
All reexamination proceedings must be conducted with special dispatch within the Office to ensure timely resolution of patentability questions.

Pursuant to 35 U.S.C. 305, “[a]ll reexamination proceedings under this section…will be conducted with special dispatch within the Office.” This statutory provision is grounded on the need for certainty and finality as to the question of patentability raised by the request for reexamination. Thus, if a second request for reexamination will unduly delay the first reexamination proceeding, the two proceedings generally will not be merged. If the Office were to merge the two proceedings, the first reexamination proceeding would need to be withdrawn from its place in the process, thus delaying, instead of advancing, prosecution. This would run contrary to the statutory “special dispatch” requirement of 35 U.S.C. 305 and its intent. On the other hand, if the Office does not merge, the first reexamination proceeding can be concluded, and any substantial new question of patentability raised by the second reexamination request can be resolved in the second proceeding, with no delay resulting. The second request is then considered based on the claims in the patent as indicated in the issued reexamination certificate, rather than the original claims of the patent. However, the Office always retains the authority to merge because in some instances, it may be more efficient to merge the two proceedings, which would foster “special dispatch.” The instances where the Office may, or may not, merge an ongoing reexamination proceeding with a subsequent reexamination proceeding, are addressed on a case-by-case basis.

Jump to MPEP Source · 37 CFR 1.565Ex Parte ReexaminationMerged Reexamination ProceedingsReexamination Certificate
StatutoryInformativeAlways
[mpep-2283-c574f57eb31618901e181426]
First Reexamination Must Not Be Delayed
Note:
The Office must not withdraw the first reexamination proceeding to merge it with a second, as this would delay prosecution and violate the special dispatch requirement of 35 U.S.C. 305.

Pursuant to 35 U.S.C. 305, “[a]ll reexamination proceedings under this section…will be conducted with special dispatch within the Office.” This statutory provision is grounded on the need for certainty and finality as to the question of patentability raised by the request for reexamination. Thus, if a second request for reexamination will unduly delay the first reexamination proceeding, the two proceedings generally will not be merged. If the Office were to merge the two proceedings, the first reexamination proceeding would need to be withdrawn from its place in the process, thus delaying, instead of advancing, prosecution. This would run contrary to the statutory “special dispatch” requirement of 35 U.S.C. 305 and its intent. On the other hand, if the Office does not merge, the first reexamination proceeding can be concluded, and any substantial new question of patentability raised by the second reexamination request can be resolved in the second proceeding, with no delay resulting. The second request is then considered based on the claims in the patent as indicated in the issued reexamination certificate, rather than the original claims of the patent. However, the Office always retains the authority to merge because in some instances, it may be more efficient to merge the two proceedings, which would foster “special dispatch.” The instances where the Office may, or may not, merge an ongoing reexamination proceeding with a subsequent reexamination proceeding, are addressed on a case-by-case basis.

Jump to MPEP Source · 37 CFR 1.565Ex Parte ReexaminationMerged Reexamination ProceedingsReexamination Certificate
StatutoryProhibitedAlways
[mpep-2283-4db1b720dff28e6f2a63e1f3]
Office May Merge Concurrent Ex Parte Reexamination Proceedings on a Case-by-Case Basis
Note:
The Office has discretion to merge ongoing and subsequent ex parte reexamination proceedings based on efficiency, with the primary goal of advancing prosecution without undue delay.

Pursuant to 35 U.S.C. 305, “[a]ll reexamination proceedings under this section…will be conducted with special dispatch within the Office.” This statutory provision is grounded on the need for certainty and finality as to the question of patentability raised by the request for reexamination. Thus, if a second request for reexamination will unduly delay the first reexamination proceeding, the two proceedings generally will not be merged. If the Office were to merge the two proceedings, the first reexamination proceeding would need to be withdrawn from its place in the process, thus delaying, instead of advancing, prosecution. This would run contrary to the statutory “special dispatch” requirement of 35 U.S.C. 305 and its intent. On the other hand, if the Office does not merge, the first reexamination proceeding can be concluded, and any substantial new question of patentability raised by the second reexamination request can be resolved in the second proceeding, with no delay resulting. The second request is then considered based on the claims in the patent as indicated in the issued reexamination certificate, rather than the original claims of the patent. However, the Office always retains the authority to merge because in some instances, it may be more efficient to merge the two proceedings, which would foster “special dispatch.” The instances where the Office may, or may not, merge an ongoing reexamination proceeding with a subsequent reexamination proceeding, are addressed on a case-by-case basis.

Jump to MPEP Source · 37 CFR 1.565Ex Parte ReexaminationMerged Reexamination ProceedingsReexamination Certificate
StatutoryInformativeAlways
[mpep-2283-a2bc5e651d858074f75a9894]
Requirement for Processing Second Ex Parte Reexamination
Note:
This rule requires following the procedures outlined in MPEP § 2295 when processing a second ex parte reexamination proceeding.

For processing of the second reexamination proceeding, see MPEP § 2295.

Jump to MPEP Source · 37 CFR 1.565Ex Parte ReexaminationMerged Reexamination Proceedings
Topic

Request Content Requirements

4 rules
StatutoryRequiredAlways
[mpep-2283-cc71fc5c1b8ebab530de1bed]
Requirement for Substantial New Question of Patentability in Second Ex Parte Reexamination Request
Note:
A second request for ex parte reexamination must present a new question regarding patentability based on newly cited art.

In order for a second or subsequent request for ex parte reexamination to be granted, a substantial new question of patentability must be raised by the art (patents and/or printed publications) cited in the second or subsequent request for reexamination. MPEP § 2240 provides a discussion as to whether a substantial new question of patentability is raised by the prior art cited in a second or subsequent request for reexamination filed while a reexamination proceeding is pending.

Jump to MPEP Source · 37 CFR 1.565Request Content RequirementsSNQ CriteriaReexamination Order
StatutoryInformativeAlways
[mpep-2283-fae8fe2914c9659aed33acd6]
Requirement for Substantial New Question of Patentability in Reexamination
Note:
MPEP § 2240 requires that a second or subsequent reexamination request must raise a substantial new question of patentability based on newly cited prior art.

In order for a second or subsequent request for ex parte reexamination to be granted, a substantial new question of patentability must be raised by the art (patents and/or printed publications) cited in the second or subsequent request for reexamination. MPEP § 2240 provides a discussion as to whether a substantial new question of patentability is raised by the prior art cited in a second or subsequent request for reexamination filed while a reexamination proceeding is pending.

Jump to MPEP Source · 37 CFR 1.565Request Content RequirementsSNQ CriteriaPrior Consideration of Art
StatutoryInformativeAlways
[mpep-2283-02c25e96abf333c0ea8e6215]
Second Reexamination Request Generally Not Merged With First
Note:
If a second request for reexamination would unduly delay the first, it generally will not be merged to avoid delaying prosecution.

Pursuant to 35 U.S.C. 305, “[a]ll reexamination proceedings under this section…will be conducted with special dispatch within the Office.” This statutory provision is grounded on the need for certainty and finality as to the question of patentability raised by the request for reexamination. Thus, if a second request for reexamination will unduly delay the first reexamination proceeding, the two proceedings generally will not be merged. If the Office were to merge the two proceedings, the first reexamination proceeding would need to be withdrawn from its place in the process, thus delaying, instead of advancing, prosecution. This would run contrary to the statutory “special dispatch” requirement of 35 U.S.C. 305 and its intent. On the other hand, if the Office does not merge, the first reexamination proceeding can be concluded, and any substantial new question of patentability raised by the second reexamination request can be resolved in the second proceeding, with no delay resulting. The second request is then considered based on the claims in the patent as indicated in the issued reexamination certificate, rather than the original claims of the patent. However, the Office always retains the authority to merge because in some instances, it may be more efficient to merge the two proceedings, which would foster “special dispatch.” The instances where the Office may, or may not, merge an ongoing reexamination proceeding with a subsequent reexamination proceeding, are addressed on a case-by-case basis.

Jump to MPEP Source · 37 CFR 1.565Request Content RequirementsMerged Reexamination ProceedingsEx Parte Reexamination Request
StatutoryPermittedAlways
[mpep-2283-f28dae88ed0b0be5e2fb6d44]
First Reexamination Proceeding Can Be Concluded Without Delay
Note:
If the Office does not merge proceedings, the first reexamination can be concluded and new questions in the second request will be addressed without delay.

Pursuant to 35 U.S.C. 305, “[a]ll reexamination proceedings under this section…will be conducted with special dispatch within the Office.” This statutory provision is grounded on the need for certainty and finality as to the question of patentability raised by the request for reexamination. Thus, if a second request for reexamination will unduly delay the first reexamination proceeding, the two proceedings generally will not be merged. If the Office were to merge the two proceedings, the first reexamination proceeding would need to be withdrawn from its place in the process, thus delaying, instead of advancing, prosecution. This would run contrary to the statutory “special dispatch” requirement of 35 U.S.C. 305 and its intent. On the other hand, if the Office does not merge, the first reexamination proceeding can be concluded, and any substantial new question of patentability raised by the second reexamination request can be resolved in the second proceeding, with no delay resulting. The second request is then considered based on the claims in the patent as indicated in the issued reexamination certificate, rather than the original claims of the patent. However, the Office always retains the authority to merge because in some instances, it may be more efficient to merge the two proceedings, which would foster “special dispatch.” The instances where the Office may, or may not, merge an ongoing reexamination proceeding with a subsequent reexamination proceeding, are addressed on a case-by-case basis.

Jump to MPEP Source · 37 CFR 1.565Request Content RequirementsSNQ CriteriaEx Parte Reexamination Request
Topic

Reexamination Order

4 rules
StatutoryRecommendedAlways
[mpep-2283-df5ae071ef16ba331497fafb]
Decision on Combining Reexaminations Must Wait Until Ordered
Note:
No decision on combining reexaminations should be made until after the later filed request for reexamination is actually ordered.

If the second or subsequent request is granted, the decision on whether or not to combine the proceedings will be made by the Central Reexamination Unit (CRU) Director where the reexamination is pending. The CRU Director may delegate this to the CRU Supervisory Patent Reexamination Specialist (SPRS). No decision on combining the reexaminations should be made until after reexamination is actually ordered in the later filed request for reexamination. See subsection I below.

Jump to MPEP Source · 37 CFR 1.565Reexamination OrderEx Parte ReexaminationMerged Reexamination Proceedings
StatutoryRequiredAlways
[mpep-2283-dfd544a48243ac81b6dd0c40]
Examiner Must Address Requests Within Three Months
Note:
The examiner must address each reexamination request within three months of its filing date if no order has been issued for either request.

The second request (i.e., Request 2) should be processed as quickly as possible and assigned to the same examiner to whom the first request (i.e., Request 1) is assigned. If neither request for reexamination has been ordered, the examiner must address each request within three months of its filing date. If Request 1 has been ordered, Request 2 should be decided immediately. If Request 2 is denied, ex parte prosecution of Request 1 should continue. If Request 2 is granted, the order in the second proceeding should be mailed immediately. The two proceedings should not be acted upon until the patent owner’s statement and any reply by the requester have been received in Request 2, or until the time for filing same expires. Then, the CRU Director or the CRU Director’s delegate will prepare a decision whether to merge the two proceedings.

Jump to MPEP Source · 37 CFR 1.565Reexamination OrderEx Parte Reexamination RequestEx Parte Reexamination
StatutoryRecommendedAlways
[mpep-2283-32a9fa8af5cc1dc895df388d]
If Request 1 Ordered, Request 2 Must Be Decided Immediately
Note:
If the first request for reexamination has been ordered, the second request must be decided as quickly as possible by the same examiner.

The second request (i.e., Request 2) should be processed as quickly as possible and assigned to the same examiner to whom the first request (i.e., Request 1) is assigned. If neither request for reexamination has been ordered, the examiner must address each request within three months of its filing date. If Request 1 has been ordered, Request 2 should be decided immediately. If Request 2 is denied, ex parte prosecution of Request 1 should continue. If Request 2 is granted, the order in the second proceeding should be mailed immediately. The two proceedings should not be acted upon until the patent owner’s statement and any reply by the requester have been received in Request 2, or until the time for filing same expires. Then, the CRU Director or the CRU Director’s delegate will prepare a decision whether to merge the two proceedings.

Jump to MPEP Source · 37 CFR 1.565Reexamination OrderMerged Reexamination ProceedingsEx Parte Reexamination
StatutoryRecommendedAlways
[mpep-2283-d56fdca7afa32f73f5db658c]
Order in Second Proceeding Must Be Mailed Immediately If Request 2 Is Granted
Note:
If Request 2 is granted, the order from the second proceeding must be mailed immediately.

The second request (i.e., Request 2) should be processed as quickly as possible and assigned to the same examiner to whom the first request (i.e., Request 1) is assigned. If neither request for reexamination has been ordered, the examiner must address each request within three months of its filing date. If Request 1 has been ordered, Request 2 should be decided immediately. If Request 2 is denied, ex parte prosecution of Request 1 should continue. If Request 2 is granted, the order in the second proceeding should be mailed immediately. The two proceedings should not be acted upon until the patent owner’s statement and any reply by the requester have been received in Request 2, or until the time for filing same expires. Then, the CRU Director or the CRU Director’s delegate will prepare a decision whether to merge the two proceedings.

Jump to MPEP Source · 37 CFR 1.565Reexamination OrderMerged Reexamination ProceedingsEx Parte Reexamination
Topic

Lack of Antecedent Basis (MPEP 2173.05(e))

4 rules
StatutoryRequiredAlways
[mpep-2283-de92e4f6339e2b7e0e013a7f]
Identical Claims Must Be Maintained In Merged Reexamination Files
Note:
Patent owner must ensure identical claims are present in all merged reexamination files to comply with merger order.

Where merger is ordered, the patent owner is required to maintain identical amendments in the merged reexamination files for purposes of the merged proceeding. The maintenance of identical amendments in the files is required as long as the reexamination proceedings remain merged. Where identical amendments are not present in the reexamination files at the time merger is ordered, the patent owner will be required to submit an appropriate “housekeeping” amendment placing the same amendments in the proceedings. This may be accomplished by amending one or more of the proceedings, as appropriate. The patent owner must not address any issue of patentability in the housekeeping amendment. In the event that an amendment to make the claims the same in each file is required by the merger decision (identical amendments to be placed in all files) but is not timely submitted, any claim that does not contain identical text in all of the merged proceedings should be rejected under 35 U.S.C. 112, second paragraph, as being indefinite as to the content of the claim, and thus failing to particularly point out the invention.

Jump to MPEP Source · 37 CFR 1.565Lack of Antecedent Basis (MPEP 2173.05(e))Merged Reexamination ProceedingsReexamination Order
StatutoryRequiredAlways
[mpep-2283-1d338d2b1a735bc6b44680e9]
Identical Amendments Must Be Maintained In Merged Reexamination Files
Note:
Patent owner must ensure identical amendments are present in all reexamination files while proceedings remain merged.

Where merger is ordered, the patent owner is required to maintain identical amendments in the merged reexamination files for purposes of the merged proceeding. The maintenance of identical amendments in the files is required as long as the reexamination proceedings remain merged. Where identical amendments are not present in the reexamination files at the time merger is ordered, the patent owner will be required to submit an appropriate “housekeeping” amendment placing the same amendments in the proceedings. This may be accomplished by amending one or more of the proceedings, as appropriate. The patent owner must not address any issue of patentability in the housekeeping amendment. In the event that an amendment to make the claims the same in each file is required by the merger decision (identical amendments to be placed in all files) but is not timely submitted, any claim that does not contain identical text in all of the merged proceedings should be rejected under 35 U.S.C. 112, second paragraph, as being indefinite as to the content of the claim, and thus failing to particularly point out the invention.

Jump to MPEP Source · 37 CFR 1.565Lack of Antecedent Basis (MPEP 2173.05(e))Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryProhibitedAlways
[mpep-2283-4fbd17e716c537957bddd4da]
Housekeeping Amendment Must Not Address Patentability Issues
Note:
The patent owner must not use a housekeeping amendment to address any issues of patentability.

Where merger is ordered, the patent owner is required to maintain identical amendments in the merged reexamination files for purposes of the merged proceeding. The maintenance of identical amendments in the files is required as long as the reexamination proceedings remain merged. Where identical amendments are not present in the reexamination files at the time merger is ordered, the patent owner will be required to submit an appropriate “housekeeping” amendment placing the same amendments in the proceedings. This may be accomplished by amending one or more of the proceedings, as appropriate. The patent owner must not address any issue of patentability in the housekeeping amendment. In the event that an amendment to make the claims the same in each file is required by the merger decision (identical amendments to be placed in all files) but is not timely submitted, any claim that does not contain identical text in all of the merged proceedings should be rejected under 35 U.S.C. 112, second paragraph, as being indefinite as to the content of the claim, and thus failing to particularly point out the invention.

Jump to MPEP Source · 37 CFR 1.565Lack of Antecedent Basis (MPEP 2173.05(e))Merged Reexamination ProceedingsEx Parte Reexamination
StatutoryRequiredAlways
[mpep-2283-2f723e0258c5b2db49c01fa2]
Claims Must Be Identical Across Merged Proceedings
Note:
Patent claims must be identical in all merged reexamination files to avoid rejection under 35 U.S.C. 112, second paragraph.

Where merger is ordered, the patent owner is required to maintain identical amendments in the merged reexamination files for purposes of the merged proceeding. The maintenance of identical amendments in the files is required as long as the reexamination proceedings remain merged. Where identical amendments are not present in the reexamination files at the time merger is ordered, the patent owner will be required to submit an appropriate “housekeeping” amendment placing the same amendments in the proceedings. This may be accomplished by amending one or more of the proceedings, as appropriate. The patent owner must not address any issue of patentability in the housekeeping amendment. In the event that an amendment to make the claims the same in each file is required by the merger decision (identical amendments to be placed in all files) but is not timely submitted, any claim that does not contain identical text in all of the merged proceedings should be rejected under 35 U.S.C. 112, second paragraph, as being indefinite as to the content of the claim, and thus failing to particularly point out the invention.

Jump to MPEP Source · 37 CFR 1.565Lack of Antecedent Basis (MPEP 2173.05(e))Merged Reexamination Proceedings35 U.S.C. 112(b) – Definiteness (MPEP 2171-2173)
Topic

Third Party Requester Rights

3 rules
StatutoryInformativeAlways
[mpep-2283-b18f67540936d2461b1722d9]
Third Party Requester Cannot Merge Reexaminations
Note:
A third party requester of one reexamination cannot petition to merge their proceeding with another if they lack standing for the second proceeding.

While the patent owner can file a petition to merge the proceedings at any time after the order to reexamine (37 CFR 1.525) on the second request, the better practice is to include any such petition with the patent owner’s statement under 37 CFR 1.530 or subsequent thereto in the event the CRU Director has not acted prior to that date to merge the multiple reexamination proceedings. The third party requester of a reexamination proceeding (reexamination # 1) does not have a right to file a petition under 37 CFR 1.182 to merge that reexamination proceeding with another reexamination proceeding (reexamination # 2), where that reexamination third party requester does not have any standing to request relief with respect to the other reexamination proceeding (reexamination # 2). No such standing is provided for anywhere in the statute. Instead of filing a petition under 37 CFR 1.182 to merge the reexamination proceedings, the third party requester may file a notification of concurrent proceedings pursuant to MPEP § 2282. After being notified of the existence of the concurrent reexamination proceedings and after consideration of the merger and suspension options becomes ripe, the Office would sua sponte consider any action to be taken. The requester does have the right to file a petition under 37 CFR 1.182 to stay the reexamination proceeding that it requested.

Jump to MPEP Source · 37 CFR 1.525)Third Party Requester RightsInter Partes Reexamination RequestPTAB Jurisdiction
StatutoryPermittedAlways
[mpep-2283-ece55a8f4259595ded5a49df]
Notification of Concurrent Proceedings for Third Party Requester
Note:
A third party requester must file a notification instead of a petition to merge reexamination proceedings.

While the patent owner can file a petition to merge the proceedings at any time after the order to reexamine (37 CFR 1.525) on the second request, the better practice is to include any such petition with the patent owner’s statement under 37 CFR 1.530 or subsequent thereto in the event the CRU Director has not acted prior to that date to merge the multiple reexamination proceedings. The third party requester of a reexamination proceeding (reexamination # 1) does not have a right to file a petition under 37 CFR 1.182 to merge that reexamination proceeding with another reexamination proceeding (reexamination # 2), where that reexamination third party requester does not have any standing to request relief with respect to the other reexamination proceeding (reexamination # 2). No such standing is provided for anywhere in the statute. Instead of filing a petition under 37 CFR 1.182 to merge the reexamination proceedings, the third party requester may file a notification of concurrent proceedings pursuant to MPEP § 2282. After being notified of the existence of the concurrent reexamination proceedings and after consideration of the merger and suspension options becomes ripe, the Office would sua sponte consider any action to be taken. The requester does have the right to file a petition under 37 CFR 1.182 to stay the reexamination proceeding that it requested.

Jump to MPEP Source · 37 CFR 1.525)Third Party Requester RightsMerged Reexamination ProceedingsInter Partes Reexamination Request
StatutoryInformativeAlways
[mpep-2283-f332da2add4759dee84cd2f9]
Third Party Requester Can Petition to Stay Reexamination Proceeding
Note:
A third party requester of a reexamination proceeding has the right to file a petition under 37 CFR 1.182 to stay the reexamination proceeding they requested.

While the patent owner can file a petition to merge the proceedings at any time after the order to reexamine (37 CFR 1.525) on the second request, the better practice is to include any such petition with the patent owner’s statement under 37 CFR 1.530 or subsequent thereto in the event the CRU Director has not acted prior to that date to merge the multiple reexamination proceedings. The third party requester of a reexamination proceeding (reexamination # 1) does not have a right to file a petition under 37 CFR 1.182 to merge that reexamination proceeding with another reexamination proceeding (reexamination # 2), where that reexamination third party requester does not have any standing to request relief with respect to the other reexamination proceeding (reexamination # 2). No such standing is provided for anywhere in the statute. Instead of filing a petition under 37 CFR 1.182 to merge the reexamination proceedings, the third party requester may file a notification of concurrent proceedings pursuant to MPEP § 2282. After being notified of the existence of the concurrent reexamination proceedings and after consideration of the merger and suspension options becomes ripe, the Office would sua sponte consider any action to be taken. The requester does have the right to file a petition under 37 CFR 1.182 to stay the reexamination proceeding that it requested.

Jump to MPEP Source · 37 CFR 1.525)Third Party Requester RightsPTAB JurisdictionEx Parte Reexamination
Topic

Request by Patent Owner

2 rules
StatutoryInformativeAlways
[mpep-2283-0a05ac35b1a7903e8795ac8e]
Second Reexamination Request Decided Based on Current Claims
Note:
If a second reexamination request is filed while the first one is pending, it will be decided based on the current claims and may lead to merged proceedings if ordered.

Where a second request for reexamination is filed while a first reexamination proceeding is pending, the second request is decided based on the claims in effect at the time of the determination (see 37 CFR 1.515(a)), and if reexamination is ordered, the patent owner and the second requester are given an opportunity to file a statement and reply, respectively. It is then considered whether the proceedings will, or will not, be merged. If the proceedings are merged, the prosecution will then continue at the most advanced point possible for the first proceeding. It should be noted that if a final rejection has been issued in the first proceeding, prosecution will be ordinarily be reopened where any of the new patents or printed publications presented in the second request are applied to the merged proceeding in a new ground of rejection.

Jump to MPEP Source · 37 CFR 1.515(a))Request by Patent OwnerThird Party RequesterRequest Content Requirements
StatutoryRecommendedAlways
[mpep-2283-6ae67a1fbb985731d6c94a7f]
Patent Owner’s Response Required Before Acting on Requests
Note:
The two reexamination requests must not be processed until the patent owner responds to Request 2 or the response period expires.

The second request (i.e., Request 2) should be processed as quickly as possible and assigned to the same examiner to whom the first request (i.e., Request 1) is assigned. If neither request for reexamination has been ordered, the examiner must address each request within three months of its filing date. If Request 1 has been ordered, Request 2 should be decided immediately. If Request 2 is denied, ex parte prosecution of Request 1 should continue. If Request 2 is granted, the order in the second proceeding should be mailed immediately. The two proceedings should not be acted upon until the patent owner’s statement and any reply by the requester have been received in Request 2, or until the time for filing same expires. Then, the CRU Director or the CRU Director’s delegate will prepare a decision whether to merge the two proceedings.

Jump to MPEP Source · 37 CFR 1.565Request by Patent OwnerThird Party RequesterRequest Content Requirements
Topic

Reexamination Certificate

2 rules
StatutoryInformativeAlways
[mpep-2283-b93b06b927bccc83d6d3ba2b]
Single Certificate Issued After Merged Reexamination
Note:
A single certificate will be issued based on merged reexamination proceedings, providing an opportunity for patent owner to respond to new rejections before the action is finalized.

The patent owner will be provided with an opportunity to respond to any new rejection in a merged reexamination proceeding prior to the action being made final. See MPEP § 2271. If the reexamination proceedings are merged, a single certificate will be issued based upon the merged proceedings. See 37 CFR 1.565(c).

Jump to MPEP Source · 37 CFR 1.565(c)Reexamination CertificateConclusion of Ex Parte ReexaminationMerged Reexamination Proceedings
StatutoryPermittedAlways
[mpep-2283-aebea3ff031d4a9861888893]
Second Reexamination Request Based on Issued Certificate Claims
Note:
The second reexamination request is considered based on the claims in the issued certificate, not the original patent claims. The Office retains the authority to merge proceedings for special dispatch.

Pursuant to 35 U.S.C. 305, “[a]ll reexamination proceedings under this section…will be conducted with special dispatch within the Office.” This statutory provision is grounded on the need for certainty and finality as to the question of patentability raised by the request for reexamination. Thus, if a second request for reexamination will unduly delay the first reexamination proceeding, the two proceedings generally will not be merged. If the Office were to merge the two proceedings, the first reexamination proceeding would need to be withdrawn from its place in the process, thus delaying, instead of advancing, prosecution. This would run contrary to the statutory “special dispatch” requirement of 35 U.S.C. 305 and its intent. On the other hand, if the Office does not merge, the first reexamination proceeding can be concluded, and any substantial new question of patentability raised by the second reexamination request can be resolved in the second proceeding, with no delay resulting. The second request is then considered based on the claims in the patent as indicated in the issued reexamination certificate, rather than the original claims of the patent. However, the Office always retains the authority to merge because in some instances, it may be more efficient to merge the two proceedings, which would foster “special dispatch.” The instances where the Office may, or may not, merge an ongoing reexamination proceeding with a subsequent reexamination proceeding, are addressed on a case-by-case basis.

Jump to MPEP Source · 37 CFR 1.565Reexamination CertificateConclusion of Ex Parte ReexaminationEx Parte Reexamination
Topic

Examination in Reexamination

2 rules
StatutoryInformativeAlways
[mpep-2283-c28a95e81e8756b70a7d52a2]
Suspend Not Allowed With Outstanding Office Action
Note:
A suspension cannot be granted when there is an outstanding Office action in a reexamination proceeding.

It may also be desirable in certain situations to suspend a proceeding for a short and specified period of time. For example, a suspension of a first reexamination proceeding may be issued to allow time for the patent owner’s statement and the requester’s reply in a second proceeding prior to merging. A suspension will only be granted in extraordinary instances, because of the statutory requirements that examination proceed with “special dispatch.” Suspension will not be granted when there is an outstanding Office action.

Jump to MPEP Source · 37 CFR 1.565Examination in ReexaminationExamination ProceduresMerged Reexamination Proceedings
StatutoryInformativeAlways
[mpep-2283-5481a18f04bb344077998a86]
Office Action When Claims Are Identical in Merged Reexamination Files
Note:
When claims are the same in both merged reexamination files, an Office action will be sent, and no further action is required from the patent owner.

A decision by the CRU Director to merge the reexamination proceedings should include a requirement that the patent owner maintain identical claims in both files. It will further require that responses by the patent owner, and any other paper filed in the merged proceeding, must consist of a single response, addressed to both files, filed in duplicate, each bearing a signature and containing identifying data for both files, for entry in both files. The decision will point out that both files will be maintained as separate complete files. Where the claims are not the same in both files, the decision of merger will indicate at its conclusion that the patent owner is given one month to provide an amendment to make the claims the same in each file. Where the claims are already the same in both files, the decision will indicate at its conclusion that an Office action will be mailed in due course, and that the patent owner need not take any action at present. The decision of merger will be mailed immediately.

Jump to MPEP Source · 37 CFR 1.565Examination in ReexaminationExamination ProceduresMerged Reexamination Proceedings
Topic

Alternative Limitations (MPEP 2173.05(h))

2 rules
StatutoryRequiredAlways
[mpep-2283-bbd40da5f424042c54521872]
Claims Must Be Identical Across Merged Proceedings
Note:
All claims in merged proceedings must contain identical text; any differing claim is indefinite and fails to particularly point out the invention.

In the event that an amendment to make the claims the same in each file is required by the merger decision (identical amendments to be placed in all files) but is not timely submitted, any claim that does not contain identical text in all of the merged proceedings (or is present in one proceeding but not present in the other(s)) should be rejected under 35 U.S.C. 112, second paragraph, as being indefinite as to the content of the claim, and thus failing to particularly point out the invention.

Jump to MPEP Source · 37 CFR 1.565Alternative Limitations (MPEP 2173.05(h))Lack of Antecedent Basis (MPEP 2173.05(e))Merged Reexamination Proceedings
StatutoryRequiredAlways
[mpep-2283-5dd018c16e2132adf6df9227]
Patent Owner Must Submit Identical Amendments After Merger
Note:
The patent owner must submit identical amendments to all reexamination files after merger is ordered if they are not already present.

Where merger is ordered, the patent owner is required to maintain identical amendments in the merged reexamination files for purposes of the merged proceeding. The maintenance of identical amendments in the files is required as long as the reexamination proceedings remain merged. Where identical amendments are not present in the reexamination files at the time merger is ordered, the patent owner will be required to submit an appropriate “housekeeping” amendment placing the same amendments in the proceedings. This may be accomplished by amending one or more of the proceedings, as appropriate. The patent owner must not address any issue of patentability in the housekeeping amendment. In the event that an amendment to make the claims the same in each file is required by the merger decision (identical amendments to be placed in all files) but is not timely submitted, any claim that does not contain identical text in all of the merged proceedings should be rejected under 35 U.S.C. 112, second paragraph, as being indefinite as to the content of the claim, and thus failing to particularly point out the invention.

Jump to MPEP Source · 37 CFR 1.565Alternative Limitations (MPEP 2173.05(h))Lack of Antecedent Basis (MPEP 2173.05(e))Reexamination Order
Topic

Interviews in Reexamination

1 rules
StatutoryPermittedAlways
[mpep-2283-855e063a6919906687010c67]
Suspension of First Reexamination Proceeding for Reply Time
Note:
Allows a suspension to be issued for the patent owner’s statement and requester’s reply before merging proceedings.

It may also be desirable in certain situations to suspend a proceeding for a short and specified period of time. For example, a suspension of a first reexamination proceeding may be issued to allow time for the patent owner’s statement and the requester’s reply in a second proceeding prior to merging. A suspension will only be granted in extraordinary instances, because of the statutory requirements that examination proceed with “special dispatch.” Suspension will not be granted when there is an outstanding Office action.

Jump to MPEP Source · 37 CFR 1.565Interviews in ReexaminationEx Parte ReexaminationMerged Reexamination Proceedings
Topic

Statutory Authority for Examination

1 rules
StatutoryInformativeAlways
[mpep-2283-bc58b346009f53b998531747]
Suspension Only for Extraordinary Instances During Ex Parte Reexamination
Note:
A suspension of a proceeding can only be granted in extraordinary circumstances to ensure examination proceeds with 'special dispatch'.

It may also be desirable in certain situations to suspend a proceeding for a short and specified period of time. For example, a suspension of a first reexamination proceeding may be issued to allow time for the patent owner’s statement and the requester’s reply in a second proceeding prior to merging. A suspension will only be granted in extraordinary instances, because of the statutory requirements that examination proceed with “special dispatch.” Suspension will not be granted when there is an outstanding Office action.

Jump to MPEP Source · 37 CFR 1.565Statutory Authority for ExaminationMerged Reexamination ProceedingsEx Parte Reexamination
Topic

Amendment Signature Requirements

1 rules
StatutoryRequiredAlways
[mpep-2283-29be36758846f23bac051a35]
Claims Must Be Identical In Merged Reexamination Proceedings
Note:
The patent owner must maintain identical claims in both files and submit a single response for both files when merging reexamination proceedings.

A decision by the CRU Director to merge the reexamination proceedings should include a requirement that the patent owner maintain identical claims in both files. It will further require that responses by the patent owner, and any other paper filed in the merged proceeding, must consist of a single response, addressed to both files, filed in duplicate, each bearing a signature and containing identifying data for both files, for entry in both files. The decision will point out that both files will be maintained as separate complete files. Where the claims are not the same in both files, the decision of merger will indicate at its conclusion that the patent owner is given one month to provide an amendment to make the claims the same in each file. Where the claims are already the same in both files, the decision will indicate at its conclusion that an Office action will be mailed in due course, and that the patent owner need not take any action at present. The decision of merger will be mailed immediately.

Jump to MPEP Source · 37 CFR 1.565Amendment Signature RequirementsCentral Reexamination Unit ProcessingMerged Reexamination Proceedings
Topic

Amendments Adding New Matter

1 rules
StatutoryInformativeAlways
[mpep-2283-50729ed0ba7c39c76f16d8c5]
Claims Must Be Made Identical In Merged Files
Note:
The patent owner must amend claims to be the same in both files within one month if they are not identical after merging reexamination proceedings.

A decision by the CRU Director to merge the reexamination proceedings should include a requirement that the patent owner maintain identical claims in both files. It will further require that responses by the patent owner, and any other paper filed in the merged proceeding, must consist of a single response, addressed to both files, filed in duplicate, each bearing a signature and containing identifying data for both files, for entry in both files. The decision will point out that both files will be maintained as separate complete files. Where the claims are not the same in both files, the decision of merger will indicate at its conclusion that the patent owner is given one month to provide an amendment to make the claims the same in each file. Where the claims are already the same in both files, the decision will indicate at its conclusion that an Office action will be mailed in due course, and that the patent owner need not take any action at present. The decision of merger will be mailed immediately.

Jump to MPEP Source · 37 CFR 1.565Amendments Adding New MatterResponse Time PeriodsAmendments to Application
Topic

Final Office Action

1 rules
StatutoryRecommendedAlways
[mpep-2283-6bd773a8f0b374eae3574003]
Final Rejection for Merged Proceeding if No New Grounds
Note:
If the first proceeding is ready for a final rejection and the second does not provide new grounds, the examiner should issue a final rejection using prosecution guidelines.

Once the merged proceeding is returned to the examiner for issuance of an Office action, the examiner should prepare an Office action at the most advanced point possible for the first proceeding. Thus, if the first proceeding is ready for a final rejection and the second proceeding does not provide any new information which would call for a new ground of rejection, the examiner should issue a final rejection for the merged proceeding using the guidelines for the prosecution stage set forth below.

Jump to MPEP Source · 37 CFR 1.565Final Office ActionFinal Rejection in ReexaminationTypes of Office Actions
Topic

Notice of Intent to Issue Reexamination Certificate (NIRC)

1 rules
StatutoryInformativeAlways
[mpep-2283-c59de695aaab00f910a1a286]
Notice of Intent to Issue Reexamination Certificate Required for Merged Proceedings
Note:
When a NIRC is appropriate, a notice must be printed and scanned into the files of merged proceedings before processing both reexamination files.

When a “Notice Of Intent To Issue Ex Parte Reexamination Certificate” (NIRC) is appropriate, a notice will be printed for the merged proceeding and scanned into the files of the merged proceeding. Both reexamination files will then be processed. The TC or the CRU should prepare the file of the concurrent proceedings in the manner specified in MPEP § 2287 before release to Office of Data Management.

Jump to MPEP Source · 37 CFR 1.565Notice of Intent to Issue Reexamination Certificate (NIRC)Reexamination CertificateConclusion of Ex Parte Reexamination
Topic

Oral Hearing

1 rules
StatutoryInformativeAlways
[mpep-2283-2942e73bf87329c10e3ec067]
Single Fee for Merged Proceedings
Note:
Only one fee is required when a paper filed in merged proceedings includes a fee requirement.

Where the proceedings have been merged and a paper is filed which requires payment of a fee (e.g., excess claim fee, fee for request for extension of time, petition fee, appeal fee, brief fee, oral hearing fee), only a single fee need be paid. For example, only one fee need be paid for an appeal brief even though the brief relates to merged multiple proceedings and copies must be filed for each file in the merged proceeding.

Jump to MPEP Source · 37 CFR 1.565Oral HearingAppeals in ReexaminationMerged Reexamination Proceedings
Topic

Appeals in Reexamination

1 rules
StatutoryRequiredAlways
[mpep-2283-abed6690395c032c12ad51a6]
Single Appeal Fee for Merged Proceedings
Note:
Only one appeal fee is required even if the brief relates to multiple merged proceedings, though copies must be filed for each file.

Where the proceedings have been merged and a paper is filed which requires payment of a fee (e.g., excess claim fee, fee for request for extension of time, petition fee, appeal fee, brief fee, oral hearing fee), only a single fee need be paid. For example, only one fee need be paid for an appeal brief even though the brief relates to merged multiple proceedings and copies must be filed for each file in the merged proceeding.

Jump to MPEP Source · 37 CFR 1.565Appeals in ReexaminationMerged Reexamination ProceedingsMaintenance Fee Amounts

Citations

Primary topicCitation
Alternative Limitations (MPEP 2173.05(h))
Lack of Antecedent Basis (MPEP 2173.05(e))
35 U.S.C. § 112
Ex Parte Reexamination
Merged Reexamination Proceedings
Reexamination Certificate
Request Content Requirements
35 U.S.C. § 305
Central Reexamination Unit Processing
Merged Reexamination Proceedings
Third Party Requester Rights
37 CFR § 1.182
Central Reexamination Unit Processing
Merged Reexamination Proceedings
37 CFR § 1.515
Merged Reexamination Proceedings
Request by Patent Owner
37 CFR § 1.515(a)
Central Reexamination Unit Processing
Merged Reexamination Proceedings
Third Party Requester Rights
37 CFR § 1.525
Central Reexamination Unit Processing
Merged Reexamination Proceedings
Third Party Requester Rights
37 CFR § 1.530
Merged Reexamination Proceedings
Reexamination Certificate
37 CFR § 1.565(c)
Request Content RequirementsMPEP § 2240
Central Reexamination Unit Processing
Merged Reexamination Proceedings
MPEP § 2267
Merged Reexamination Proceedings
Reexamination Certificate
MPEP § 2271
Central Reexamination Unit Processing
Merged Reexamination Proceedings
Third Party Requester Rights
MPEP § 2282
Central Reexamination Unit Processing
Ex Parte Reexamination
Notice of Intent to Issue Reexamination Certificate (NIRC)
MPEP § 2287
Ex Parte ReexaminationMPEP § 2295
Merged Reexamination ProceedingsMPEP § 2686.01

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