MPEP § 2236 — Assignment of Reexamination (Annotated Rules)

§2236 Assignment of Reexamination

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

This page consolidates and annotates all enforceable requirements under MPEP § 2236, 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.

Assignment of Reexamination

This section addresses Assignment of Reexamination. Primary authority: 37 CFR 1.530 and 37 CFR 1.535. Contains: 2 requirements, 1 prohibition, 4 guidance statements, 3 permissions, and 8 other statements.

Key Rules

Topic

Reissue and Reexamination

12 rules
MPEP GuidanceRecommendedAlways
[mpep-2236-95e3533f8158f53ccdff154f]
Same Examiner Allowed for Concurrent Reexamination and Reissue
Note:
If a reexamination is ongoing, the same examiner will generally handle any concurrent reissue application unless they were involved in examining the original patent.
It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
  • (A) When a reissue application is pending for a patent, and a reexamination request is filed under 35 U.S.C. 302 for the same patent, the reexamination request is generally assigned to an examiner who did not examine the original patent application even if the examiner who examined the patent application is also examining the reissue application. If the reexamination request is granted and the reissue and reexamination proceedings are later merged (see MPEP § 2285), the merged proceeding will be handled (upon return of the files from the Office of Patent Legal Administration (OPLA)) by the examiner who is handling the reissue application. However, if that examiner was involved in any part of the examination of the patent for which reexamination is requested (e.g., by preparing/signing an action), or was involved in the examination of the parent application of the patent, a different examiner will be assigned. In this instance, the reissue application would be transferred (reassigned) from the originally assigned examiner.
  • (B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent:
    • (1) Where reexamination has already been ordered (granted) in the reexamination proceeding, OPLA should be notified as promptly as possible after the reissue application is available for docketing, 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 scanned into the Image File Wrapper (IFW) at the time of the notification to OPLA. If the reissue and reexamination proceedings are merged by OPLA, the reissue application will generally be assigned to the examiner who would ordinarily handle the reissue application. However, if that examiner was involved in any part of the examination of patent for which reexamination is requested (e.g., by preparing/signing an action), or was so involved in the examination of the parent application of the patent, a different examiner will be assigned. If the reissue and reexamination proceedings are not merged by OPLA, the decision will provide guidance as to assignment of the reissue proceeding depending on the individual fact situation.
    • (2) If reexamination has not yet been ordered, the Supervisory Patent Reexamination Specialist (SPRS) will ensure that any parallel reissue application is not assigned or acted upon, until a decision on the reexamination request under 35 U.S.C. 302 is made. If reexamination is denied, the reexamination proceeding will be concluded pursuant to MPEP § 2294, and the reissue application assigned in accordance with MPEP § 1440. If the reexamination request is granted (i.e., reexamination is ordered), the SPRS 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§ 2251), and then OPLA will be promptly notified to consider merger of the proceedings. If any of the reexamination file, reissue application, or patent files are in paper form, they should be scanned into the Image File Wrapper (IFW) at the time OPLA is notified. If the reissue and reexamination proceedings are merged, the reissue application will generally be assigned (upon return of the files from OPLA) to the examiner who ordinarily handles the reissue application. However, if that examiner was involved in any part of the examination of the patent for which reexamination is requested (e.g., by preparing/signing an action), or was so involved in the examination of the parent application of the patent, a different examiner will be assigned. If the reissue and reexamination proceedings are not merged, the decision may provide guidance as to assignment of the reissue proceeding, if necessary, depending on the individual fact situation.
Jump to MPEP SourceReissue and ReexaminationConcurrent Reissue ProceedingsEx Parte Reexamination
MPEP GuidanceInformativeAlways
[mpep-2236-03e9d1c0b1f4d6bd036a5e65]
Examiner Not Examining Original Patent Handles Reexamination
Note:
If a reissue application is pending and a reexamination request is filed for the same patent, the new reexamination will generally be assigned to an examiner who did not examine the original patent application.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination. (A) When a reissue application is pending for a patent, and a reexamination request is filed under 35 U.S.C. 302 for the same patent, the reexamination request is generally assigned to an examiner who did not examine the original patent application even if the examiner who examined the patent application is also examining the reissue application. If the reexamination request is granted and the reissue and reexamination proceedings are later merged (see MPEP § 2285), the merged proceeding will be handled (upon return of the files from the Office of Patent Legal Administration (OPLA)) by the examiner who is handling the reissue application. However, if that examiner was involved in any part of the examination of the patent for which reexamination is requested (e.g., by preparing/signing an action), or was involved in the examination of the parent application of the patent, a different examiner will be assigned. In this instance, the reissue application would be transferred (reassigned) from the originally assigned examiner.

Jump to MPEP SourceReissue and ReexaminationConcurrent Reissue ProceedingsEx Parte Reexamination
MPEP GuidanceInformativeAlways
[mpep-2236-b2c36b952eafd18dd44a981a]
Merged Reissue and Reexamination Assigned to Different Examiner If Involved
Note:
If an examiner was involved in the examination of a patent or its parent application, they will not handle the merged reissue and reexamination proceedings.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination. (A) When a reissue application is pending for a patent, and a reexamination request is filed under 35 U.S.C. 302 for the same patent, the reexamination request is generally assigned to an examiner who did not examine the original patent application even if the examiner who examined the patent application is also examining the reissue application. If the reexamination request is granted and the reissue and reexamination proceedings are later merged (see MPEP § 2285), the merged proceeding will be handled (upon return of the files from the Office of Patent Legal Administration (OPLA)) by the examiner who is handling the reissue application. However, if that examiner was involved in any part of the examination of the patent for which reexamination is requested (e.g., by preparing/signing an action), or was involved in the examination of the parent application of the patent, a different examiner will be assigned. In this instance, the reissue application would be transferred (reassigned) from the originally assigned examiner.

Jump to MPEP SourceReissue and ReexaminationMerged Reexamination ProceedingsStatutory Authority for Examination
MPEP GuidanceRecommendedAlways
[mpep-2236-9a6cb58c36243c60acf946c6]
Notification Required for Reissue and Ongoing Reexamination Merger
Note:
OPLA must be notified promptly when a reissue application is filed while an ongoing reexamination is pending, to consider merging the proceedings.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent (1) Where reexamination has already been ordered (granted) in the reexamination proceeding, OPLA should be notified as promptly as possible after the reissue application is available for docketing, 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 scanned into the Image File Wrapper (IFW) at the time of the notification to OPLA. If the reissue and reexamination proceedings are merged by OPLA, the reissue application will generally be assigned to the examiner who would ordinarily handle the reissue application. However, if that examiner was involved in any part of the examination of patent for which reexamination is requested (e.g., by preparing/signing an action), or was so involved in the examination of the parent application of the patent, a different examiner will be assigned. If the reissue and reexamination proceedings are not merged by OPLA, the decision will provide guidance as to assignment of the reissue proceeding depending on the individual fact situation.

Jump to MPEP SourceReissue and ReexaminationReexamination OrderConcurrent Reissue Proceedings
MPEP GuidanceRecommendedAlways
[mpep-2236-06b43c1db258308f7bf87b15]
File Scanning Required for Reissue and Reexamination
Note:
If any of the reexamination file, reissue application, or patent file are paper files, they must be scanned into the Image File Wrapper (IFW) at the time of notification to OPLA.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent (1) Where reexamination has already been ordered (granted) in the reexamination proceeding, OPLA should be notified as promptly as possible after the reissue application is available for docketing, 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 scanned into the Image File Wrapper (IFW) at the time of the notification to OPLA. If the reissue and reexamination proceedings are merged by OPLA, the reissue application will generally be assigned to the examiner who would ordinarily handle the reissue application. However, if that examiner was involved in any part of the examination of patent for which reexamination is requested (e.g., by preparing/signing an action), or was so involved in the examination of the parent application of the patent, a different examiner will be assigned. If the reissue and reexamination proceedings are not merged by OPLA, the decision will provide guidance as to assignment of the reissue proceeding depending on the individual fact situation.

Jump to MPEP SourceReissue and ReexaminationConcurrent Reissue ProceedingsEx Parte Reexamination
MPEP GuidanceInformativeAlways
[mpep-2236-2a88a66b4448d60c95e206dc]
Examiner Assignment for Merged Reissue and Reexamination
Note:
If a reissue application is filed during an ongoing reexamination, the examiner who handled the original examination will generally be assigned to handle both proceedings unless they were involved in the current reexamination.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent (1) Where reexamination has already been ordered (granted) in the reexamination proceeding, OPLA should be notified as promptly as possible after the reissue application is available for docketing, 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 scanned into the Image File Wrapper (IFW) at the time of the notification to OPLA. If the reissue and reexamination proceedings are merged by OPLA, the reissue application will generally be assigned to the examiner who would ordinarily handle the reissue application. However, if that examiner was involved in any part of the examination of patent for which reexamination is requested (e.g., by preparing/signing an action), or was so involved in the examination of the parent application of the patent, a different examiner will be assigned. If the reissue and reexamination proceedings are not merged by OPLA, the decision will provide guidance as to assignment of the reissue proceeding depending on the individual fact situation.

Jump to MPEP SourceReissue and ReexaminationMerged Reexamination ProceedingsStatutory Authority for Examination
MPEP GuidanceInformativeAlways
[mpep-2236-76c3089d974cd947c97a719b]
Assignment of Reissue Depending on Fact Situation
Note:
If reissue and reexamination are not merged, the decision will guide assignment based on individual circumstances.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent (1) Where reexamination has already been ordered (granted) in the reexamination proceeding, OPLA should be notified as promptly as possible after the reissue application is available for docketing, 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 scanned into the Image File Wrapper (IFW) at the time of the notification to OPLA. If the reissue and reexamination proceedings are merged by OPLA, the reissue application will generally be assigned to the examiner who would ordinarily handle the reissue application. However, if that examiner was involved in any part of the examination of patent for which reexamination is requested (e.g., by preparing/signing an action), or was so involved in the examination of the parent application of the patent, a different examiner will be assigned. If the reissue and reexamination proceedings are not merged by OPLA, the decision will provide guidance as to assignment of the reissue proceeding depending on the individual fact situation.

Jump to MPEP SourceReissue and ReexaminationMerged Reexamination ProceedingsConcurrent Reissue Proceedings
MPEP GuidanceInformativeAlways
[mpep-2236-021381b8fdaea30611df6da1]
Reissue Application Not Assigned Until Reexamination Decision
Note:
Ensures a reissue application is not processed until a decision on the pending reexamination request is made.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent:

(2) If reexamination has not yet been ordered, the Supervisory Patent Reexamination Specialist (SPRS) will ensure that any parallel reissue application is not assigned or acted upon, until a decision on the reexamination request under 35 U.S.C. 302 is made.

Jump to MPEP SourceReissue and ReexaminationReexamination OrderEx Parte Reexamination Request
MPEP GuidanceInformativeAlways
[mpep-2236-559c41e0f4b1651ce1c3d725]
If Reexamination Denied, Reissue Assigned Per MPEP
Note:
When reexamination is denied, the reissue application will be assigned according to MPEP §1440 after concluding the proceeding as per MPEP §2294.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent:

If reexamination is denied, the reexamination proceeding will be concluded pursuant to MPEP § 2294, and the reissue application assigned in accordance with MPEP § 1440.

Jump to MPEP SourceReissue and ReexaminationConcurrent Reissue ProceedingsEx Parte Reexamination
MPEP GuidanceRecommendedAlways
[mpep-2236-6dbff1391a017adbde6baba2]
Reexamination and Reissue Files Must Be Scanned into IFW Upon OPLA Notification
Note:
If any reexamination file, reissue application, or patent files are in paper form, they must be scanned into the Image File Wrapper (IFW) at the time OPLA is notified.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent:

If any of the reexamination file, reissue application, or patent files are in paper form, they should be scanned into the Image File Wrapper (IFW) at the time OPLA is notified.

Jump to MPEP SourceReissue and ReexaminationConcurrent Reissue ProceedingsEx Parte Reexamination
MPEP GuidanceInformativeAlways
[mpep-2236-b0b4927461a7e83db5b5879c]
Examiner Assignment for Merged Reexamination and Reissue
Note:
If reexamination is granted, the reissue application will generally be assigned to the examiner who handles reissue applications, unless that examiner was involved in examining the patent or its parent application.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent:

If the reissue and reexamination proceedings are merged, the reissue application will generally be assigned (upon return of the files from OPLA) to the examiner who ordinarily handles the reissue application. However, if that examiner was involved in any part of the examination of the patent for which reexamination is requested (e.g., by preparing/signing an action), or was so involved in the examination of the parent application of the patent, a different examiner will be assigned.

Jump to MPEP SourceReissue and ReexaminationMerged Reexamination ProceedingsStatutory Authority for Examination
MPEP GuidancePermittedAlways
[mpep-2236-b457889a3a212efb493bd864]
Guidance for Reissue Assignment if Reexamination Not Merged
Note:
If reexamination and reissue proceedings are not merged, the decision may provide guidance on assigning the reissue proceeding based on individual circumstances.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent:

If the reissue and reexamination proceedings are not merged, the decision may provide guidance as to assignment of the reissue proceeding, if necessary, depending on the individual fact situation.

Jump to MPEP SourceReissue and ReexaminationMerged Reexamination ProceedingsConcurrent Reissue Proceedings
Topic

Central Reexamination Unit Processing

5 rules
MPEP GuidanceInformativeAlways
[mpep-2236-c4133d8c81f76dca2d08746d]
Reexamination Requests Assigned to CRU Art Unit
Note:
Patent reexamination requests are generally assigned to the Central Reexamination Unit art unit, where a primary examiner familiar with the patent's technology will handle the request.

Reexamination requests are generally assigned to the Central Reexamination Unit (CRU) art unit which examines the technology (Chemical, Electrical, Mechanical, etc.) in which the patent to be reexamined is currently classified as an original classification. In that art unit, the CRU Supervisory Patent Reexamination Specialist (SPRS) will assign the reexamination request to a primary examiner, other than the examiner who originally examined the patent application (see “Examiner Assignment Policy” below), who is most familiar with the claimed subject matter of the patent. In an extremely rare situation, where a proceeding is still in a Technology Center (TC) rather than the CRU, the reexamination may be assigned to an assistant examiner if no knowledgeable primary examiner is available. In such an instance a primary examiner must sign all actions, conference all actions with a SPRS or manager and another examiner, and take responsibility for all actions taken.

Jump to MPEP SourceCentral Reexamination Unit ProcessingEx Parte ReexaminationSecrecy Orders
MPEP GuidanceInformativeAlways
[mpep-2236-eb1d41dbf97f9c2507c32aa4]
Primary Examiner Assigned for Reexamination
Note:
The CRU SPRS assigns a primary examiner, other than the original examiner, who is most familiar with the claimed subject matter of the patent.

Reexamination requests are generally assigned to the Central Reexamination Unit (CRU) art unit which examines the technology (Chemical, Electrical, Mechanical, etc.) in which the patent to be reexamined is currently classified as an original classification. In that art unit, the CRU Supervisory Patent Reexamination Specialist (SPRS) will assign the reexamination request to a primary examiner, other than the examiner who originally examined the patent application (see “Examiner Assignment Policy” below), who is most familiar with the claimed subject matter of the patent. In an extremely rare situation, where a proceeding is still in a Technology Center (TC) rather than the CRU, the reexamination may be assigned to an assistant examiner if no knowledgeable primary examiner is available. In such an instance a primary examiner must sign all actions, conference all actions with a SPRS or manager and another examiner, and take responsibility for all actions taken.

Jump to MPEP SourceCentral Reexamination Unit ProcessingEx Parte ReexaminationEx Parte Reexamination Request
MPEP GuidancePermittedAlways
[mpep-2236-6dd4842a6354ddee081f20ef]
Assistant Examiner May Assign Reexamination When No Knowledgeable Primary Examiner Is Available
Note:
In rare cases where a proceeding is in a Technology Center instead of the CRU, reexamination may be assigned to an assistant examiner if no knowledgeable primary examiner is available.

Reexamination requests are generally assigned to the Central Reexamination Unit (CRU) art unit which examines the technology (Chemical, Electrical, Mechanical, etc.) in which the patent to be reexamined is currently classified as an original classification. In that art unit, the CRU Supervisory Patent Reexamination Specialist (SPRS) will assign the reexamination request to a primary examiner, other than the examiner who originally examined the patent application (see “Examiner Assignment Policy” below), who is most familiar with the claimed subject matter of the patent. In an extremely rare situation, where a proceeding is still in a Technology Center (TC) rather than the CRU, the reexamination may be assigned to an assistant examiner if no knowledgeable primary examiner is available. In such an instance a primary examiner must sign all actions, conference all actions with a SPRS or manager and another examiner, and take responsibility for all actions taken.

Jump to MPEP SourceCentral Reexamination Unit ProcessingEx Parte ReexaminationEx Parte Reexamination Request
MPEP GuidanceRequiredAlways
[mpep-2236-dcb26543c8dfb82c80eb4bff]
Primary Examiner Must Sign and Conference All Actions
Note:
The primary examiner must sign all actions, confer with a SPRS or manager, another examiner, and take responsibility for all reexamination actions.

Reexamination requests are generally assigned to the Central Reexamination Unit (CRU) art unit which examines the technology (Chemical, Electrical, Mechanical, etc.) in which the patent to be reexamined is currently classified as an original classification. In that art unit, the CRU Supervisory Patent Reexamination Specialist (SPRS) will assign the reexamination request to a primary examiner, other than the examiner who originally examined the patent application (see “Examiner Assignment Policy” below), who is most familiar with the claimed subject matter of the patent. In an extremely rare situation, where a proceeding is still in a Technology Center (TC) rather than the CRU, the reexamination may be assigned to an assistant examiner if no knowledgeable primary examiner is available. In such an instance a primary examiner must sign all actions, conference all actions with a SPRS or manager and another examiner, and take responsibility for all actions taken.

Jump to MPEP SourceCentral Reexamination Unit ProcessingEx Parte ReexaminationEx Parte Reexamination Request
MPEP GuidanceRequiredAlways
[mpep-2236-e7035c3e31485f344a6d4d0c]
Original Examiner Must Be Approved by CRU Director
Note:
The original examiner can only be assigned if approved by the CRU Director, and this must be stated or signed in the reexamination decision.

Exceptions to this general policy include cases where the original examiner is the only examiner with adequate knowledge of the relevant technology to examine the case. In the unusual case where there is a need to assign the request to the original examiner, the assignment must be approved by the CRU Director, and the fact that such approval was given by the CRU Director must be stated by the examiner in the decision on the request for reexamination or must be indicated with the CRU Director’s signature affixed at the end of the order or action.

Jump to MPEP SourceCentral Reexamination Unit ProcessingReexamination OrderEx Parte Reexamination
Topic

Third Party Requester Rights

3 rules
StatutoryInformativeAlways
[mpep-2236-c8656b5cf524dd02bd982ee8]
Third Party Requester Must Notify Examiner Assignment
Note:
A third party requester must notify the Office of an examiner assignment within two months, otherwise they cannot reply to papers related to the assignment.

A situation may arise where a party timely (i.e., within the two months noted above) files a paper notifying the Office to the assignment of a reexamination to the “original examiner,” but that paper does not have a right of entry under the rules. An example of this is where a third party requester becomes aware of the assignment to the “original examiner” via that examiner signing the order for reexamination, and the patent owner does not file a statement under 37 CFR 1.530. In that situation, the third party requester cannot file a reply under 37 CFR 1.535, and thus has no way to present the paper directed to the examiner assignment (no right of entry under the rules). In situations where a paper directed to the examiner assignment has no right of entry under the rules, the Office may waive the rules to the extent that the paper directed to the examiner assignment will be entered and considered.

Jump to MPEP Source · 37 CFR 1.530Third Party Requester RightsReexamination OrderPatent Owner Statement
StatutoryProhibitedAlways
[mpep-2236-5dd2b6de7a3df6af00c1e365]
Third Party Requester Cannot Reply Without Entry Right
Note:
A third party requester cannot file a reply if they do not have the right of entry under the rules when notified of an examiner assignment.

A situation may arise where a party timely (i.e., within the two months noted above) files a paper notifying the Office to the assignment of a reexamination to the “original examiner,” but that paper does not have a right of entry under the rules. An example of this is where a third party requester becomes aware of the assignment to the “original examiner” via that examiner signing the order for reexamination, and the patent owner does not file a statement under 37 CFR 1.530. In that situation, the third party requester cannot file a reply under 37 CFR 1.535, and thus has no way to present the paper directed to the examiner assignment (no right of entry under the rules). In situations where a paper directed to the examiner assignment has no right of entry under the rules, the Office may waive the rules to the extent that the paper directed to the examiner assignment will be entered and considered.

Jump to MPEP Source · 37 CFR 1.530Third Party Requester RightsThird Party Requester ReplyInter Partes Reexamination Request
StatutoryPermittedAlways
[mpep-2236-2a685166c286f8d2228fcee4]
Office May Waive Rules for Examiner Assignment Paper
Note:
The Office may waive rules to enter and consider a paper directed to the examiner assignment if it has no right of entry under the rules.

A situation may arise where a party timely (i.e., within the two months noted above) files a paper notifying the Office to the assignment of a reexamination to the “original examiner,” but that paper does not have a right of entry under the rules. An example of this is where a third party requester becomes aware of the assignment to the “original examiner” via that examiner signing the order for reexamination, and the patent owner does not file a statement under 37 CFR 1.530. In that situation, the third party requester cannot file a reply under 37 CFR 1.535, and thus has no way to present the paper directed to the examiner assignment (no right of entry under the rules). In situations where a paper directed to the examiner assignment has no right of entry under the rules, the Office may waive the rules to the extent that the paper directed to the examiner assignment will be entered and considered.

Jump to MPEP Source · 37 CFR 1.530Third Party Requester RightsReexamination OrderPatent Owner Statement
Topic

Examiner Docket Management

2 rules
StatutoryInformativeAlways
[mpep-2236-93a2b8716c410787cb2141b0]
Reexamination Reassigned on Case-by-Case Basis
Note:
If a reexamination is assigned to an original examiner, it will be reassigned based on individual circumstances rather than automatically.

Should a reexamination be inadvertently assigned to an “original examiner” (in a situation where the TC or CRU Director’s approval is not stated in the decision on the request), the patent owner or the third party requester who objects must promptly file a paper notifying the Office. Any paper notifying the Office of an assignment to an “original examiner” must be filed within two months of the first Office action or other Office communication indicating the examiner assignment, otherwise reassignment based on such objection will not be considered. Reassignment of the reexamination proceeding to a different examiner will be addressed on a case-by-case basis. In no event will the assignment to the original examiner, by itself, be grounds for vacating any Office decision(s) or action(s) and “restarting” the reexamination.

Jump to MPEP SourceExaminer Docket ManagementEx Parte ReexaminationFirst Action on Merits (FAOM)
StatutoryInformativeAlways
[mpep-2236-c616bdc12df2994d55addfa7]
Assignment to Original Examiner Does Not Restart Reexamination
Note:
The assignment of a reexamination to an original examiner does not allow for vacating Office decisions or restarting the reexamination process.

Should a reexamination be inadvertently assigned to an “original examiner” (in a situation where the TC or CRU Director’s approval is not stated in the decision on the request), the patent owner or the third party requester who objects must promptly file a paper notifying the Office. Any paper notifying the Office of an assignment to an “original examiner” must be filed within two months of the first Office action or other Office communication indicating the examiner assignment, otherwise reassignment based on such objection will not be considered. Reassignment of the reexamination proceeding to a different examiner will be addressed on a case-by-case basis. In no event will the assignment to the original examiner, by itself, be grounds for vacating any Office decision(s) or action(s) and “restarting” the reexamination.

Jump to MPEP SourceExaminer Docket ManagementFirst Action on Merits (FAOM)Non-Final Action Content
Topic

First Action on Merits (FAOM)

1 rules
StatutoryRequiredAlways
[mpep-2236-141c98f66fa58b6e79e3a00d]
Objection to Original Examiner Must Be Notified Promptly
Note:
Patent owner or third party requester must file a notification within two months of the first Office action indicating assignment to an original examiner, otherwise reassignment will not be considered.

Should a reexamination be inadvertently assigned to an “original examiner” (in a situation where the TC or CRU Director’s approval is not stated in the decision on the request), the patent owner or the third party requester who objects must promptly file a paper notifying the Office. Any paper notifying the Office of an assignment to an “original examiner” must be filed within two months of the first Office action or other Office communication indicating the examiner assignment, otherwise reassignment based on such objection will not be considered. Reassignment of the reexamination proceeding to a different examiner will be addressed on a case-by-case basis. In no event will the assignment to the original examiner, by itself, be grounds for vacating any Office decision(s) or action(s) and “restarting” the reexamination.

Jump to MPEP SourceFirst Action on Merits (FAOM)Non-Final Action ContentInterviews in Reexamination
Topic

PTAB Contested Case Procedures

1 rules
StatutoryPermittedAlways
[mpep-2236-12469feacc9e6b204615bdb4]
Requirement for Timely Examiner Assignment Notification
Note:
A party must timely notify the Office of an examiner assignment for reexamination, even if it lacks right of entry under rules.

A situation may arise where a party timely (i.e., within the two months noted above) files a paper notifying the Office to the assignment of a reexamination to the “original examiner,” but that paper does not have a right of entry under the rules. An example of this is where a third party requester becomes aware of the assignment to the “original examiner” via that examiner signing the order for reexamination, and the patent owner does not file a statement under 37 CFR 1.530. In that situation, the third party requester cannot file a reply under 37 CFR 1.535, and thus has no way to present the paper directed to the examiner assignment (no right of entry under the rules). In situations where a paper directed to the examiner assignment has no right of entry under the rules, the Office may waive the rules to the extent that the paper directed to the examiner assignment will be entered and considered.

Jump to MPEP Source · 37 CFR 1.530PTAB Contested Case ProceduresThird Party Requester RightsReexamination Order
Topic

Reissue Patent Practice

1 rules
MPEP GuidanceInformativeAlways
[mpep-2236-579f4822d739995218893e52]
Reissue Application Transferred from Original Examiner
Note:
If an examiner who examined a patent also examines its reissue application, the reissue application will be reassigned to another examiner when a new reexamination is filed while the original reexamination is still ongoing.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination. (A) When a reissue application is pending for a patent, and a reexamination request is filed under 35 U.S.C. 302 for the same patent, the reexamination request is generally assigned to an examiner who did not examine the original patent application even if the examiner who examined the patent application is also examining the reissue application. If the reexamination request is granted and the reissue and reexamination proceedings are later merged (see MPEP § 2285), the merged proceeding will be handled (upon return of the files from the Office of Patent Legal Administration (OPLA)) by the examiner who is handling the reissue application. However, if that examiner was involved in any part of the examination of the patent for which reexamination is requested (e.g., by preparing/signing an action), or was involved in the examination of the parent application of the patent, a different examiner will be assigned. In this instance, the reissue application would be transferred (reassigned) from the originally assigned examiner.

Jump to MPEP SourceReissue Patent PracticeReissue and ReexaminationMerged Reexamination Proceedings
Topic

Request Content Requirements

1 rules
MPEP GuidanceInformativeAlways
[mpep-2236-23d915beb39b004967f4d8c4]
Notification for Merged Reexamination and Reissue Proceedings
Note:
The SPRS will await filing of statements and replies, then notify OPLA to merge reexamination and reissue proceedings if granted.

It should be noted that while an examiner who examined an earlier concluded reexamination proceeding is generally excluded from assignment of a newly filed reexamination, if the earlier reexamination is still ongoing, the same examiner will generally be assigned the new reexamination.
(B) When a reexamination proceeding is pending for a patent, and a reissue application is filed for the same patent:

If the reexamination request is granted (i.e., reexamination is ordered), the SPRS 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§ 2251), and then OPLA will be promptly notified to consider merger of the proceedings.

Jump to MPEP SourceRequest Content RequirementsReissue and ReexaminationReexamination Order

Citations

Primary topicCitation
Reissue and Reexamination
Request Content Requirements
35 U.S.C. § 2251
Reissue Patent Practice
Reissue and Reexamination
Request Content Requirements
35 U.S.C. § 302
PTAB Contested Case Procedures
Reissue and Reexamination
Request Content Requirements
Third Party Requester Rights
37 CFR § 1.530
PTAB Contested Case Procedures
Reissue and Reexamination
Request Content Requirements
Third Party Requester Rights
37 CFR § 1.535
Reissue and Reexamination
Request Content Requirements
MPEP § 1440
Reissue and Reexamination
Request Content Requirements
MPEP § 2249
Reissue Patent Practice
Reissue and Reexamination
MPEP § 2285
Reissue and Reexamination
Request Content Requirements
MPEP § 2294

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