MPEP § 2239 — Reexamination Ordered at the Director’s Initiative (Annotated Rules)

§2239 Reexamination Ordered at the Director’s Initiative

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

This page consolidates and annotates all enforceable requirements under MPEP § 2239, 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.

Reexamination Ordered at the Director’s Initiative

This section addresses Reexamination Ordered at the Director’s Initiative. Primary authority: 37 CFR 1.510, 37 CFR 1.913, and 37 CFR 1.33(c). Contains: 3 permissions and 5 other statements.

Key Rules

Topic

Reexamination Order

3 rules
StatutoryPermittedAlways
[mpep-2239-ac982b308e4f2feaafaedb7e]
Director Can Order Reexamination Without Request
Note:
The USPTO Director can initiate reexamination of a patent at any time during its enforceability period without needing a request or fee.

The Director of the USPTO may initiate reexamination without a request being filed and without a fee being paid. Such reexamination may be ordered at any time during the period of enforceability of the patent.

Jump to MPEP Source · 37 CFR 1.520Reexamination OrderEx Parte ReexaminationFee Requirements
StatutoryInformativeAlways
[mpep-2239-bc1409df28a2b7a272538c5c]
Rare Director-Initiated Reexaminations
Note:
A reexamination ordered by the Director is rare and requires compelling circumstances after reviewing all patent facts.

A decision to order reexamination at the Director’s initiative is, however, rare. Only in compelling circumstances, after a review of all the facts concerning the patent, would such a decision be made. Authority to order reexamination at the Director’s initiative has been delegated to the Deputy Commissioner for Patents who oversees the Office of Petitions. A decision to order reexamination at the Director’s initiative may also be made by the Director of the USPTO, the Deputy Director or the Commissioner for Patents.

Jump to MPEP Source · 37 CFR 1.520Reexamination OrderEx Parte ReexaminationCommissioner for Patents
StatutoryInformativeAlways
[mpep-2239-06c7ec304e3ecfeb7e13700d]
Director Will Not Normally Consider Public Requests for Reexamination at Initiative
Note:
The Director of the USPTO will not typically review requests from members of the public to order reexamination on their own initiative. Instead, such requests should be filed in accordance with specific requirements.

The Director of the USPTO will not normally consider requests to order reexamination at the Director’s initiative received from members of the public. If a member of the public desires reexamination of a patent, a request and fee under 37 CFR 1.20(c)(1) or (c)(2) should be filed in accordance with 37 CFR 1.510.

Jump to MPEP Source · 37 CFR 1.20(c)(1)Reexamination OrderEx Parte ReexaminationReexamination Filing Fee
Topic

Ex Parte Reexamination

2 rules
StatutoryInformativeAlways
[mpep-2239-3eea47611b766af5d1a07ae3]
Director May Initiate Ex Parte Reexamination Without Request
Note:
The Director can initiate ex parte reexamination on their own initiative without considering outside requests.

The Director, at any time during the period of enforceability of a patent, may determine whether or not a substantial new question of patentability is raised by patents or printed publications which have been discovered by the Director or which have been brought to the Director’s attention, even though no request for reexamination has been filed in accordance with § 1.510 or § 1.913. The Director may initiate ex parte reexamination without a request for reexamination pursuant to § 1.510 or § 1.913. Normally requests from outside the Office that the Director undertake reexamination on his own initiative will not be considered. Any determination to initiate ex parte reexamination under this section will become a part of the official file of the patent and will be mailed to the patent owner at the address as provided for in § 1.33(c).

Jump to MPEP Source · 37 CFR 1.510Ex Parte ReexaminationRequest by Patent OwnerRequest Content Requirements
StatutoryInformativeAlways
[mpep-2239-61ff70098bb934820d123090]
Reexamination Ordered Only in Compelling Cases
Note:
A decision to order reexamination at the Director’s initiative is rare and requires a thorough review of all patent facts.

A decision to order reexamination at the Director’s initiative is, however, rare. Only in compelling circumstances, after a review of all the facts concerning the patent, would such a decision be made. Authority to order reexamination at the Director’s initiative has been delegated to the Deputy Commissioner for Patents who oversees the Office of Petitions. A decision to order reexamination at the Director’s initiative may also be made by the Director of the USPTO, the Deputy Director or the Commissioner for Patents.

Jump to MPEP Source · 37 CFR 1.520Ex Parte ReexaminationCommissioner for PatentsDeputy Director
Topic

Commissioner for Patents

2 rules
StatutoryInformativeAlways
[mpep-2239-3e2e2ba9eaabbb3be94a16b9]
Deputy Commissioner Can Order Reexamination
Note:
The Deputy Commissioner for Patents, who oversees the Office of Petitions, has the authority to order reexamination at the Director’s initiative under compelling circumstances.

A decision to order reexamination at the Director’s initiative is, however, rare. Only in compelling circumstances, after a review of all the facts concerning the patent, would such a decision be made. Authority to order reexamination at the Director’s initiative has been delegated to the Deputy Commissioner for Patents who oversees the Office of Petitions. A decision to order reexamination at the Director’s initiative may also be made by the Director of the USPTO, the Deputy Director or the Commissioner for Patents.

Jump to MPEP Source · 37 CFR 1.520Commissioner for PatentsUSPTO Officials and Their AuthorityReexamination Order
StatutoryPermittedAlways
[mpep-2239-bd234a560d111ed79a5112de]
USPTO Officials Can Order Reexamination
Note:
The Director, Deputy Director, and Commissioner for Patents have the authority to order reexamination at their initiative under compelling circumstances.

A decision to order reexamination at the Director’s initiative is, however, rare. Only in compelling circumstances, after a review of all the facts concerning the patent, would such a decision be made. Authority to order reexamination at the Director’s initiative has been delegated to the Deputy Commissioner for Patents who oversees the Office of Petitions. A decision to order reexamination at the Director’s initiative may also be made by the Director of the USPTO, the Deputy Director or the Commissioner for Patents.

Jump to MPEP Source · 37 CFR 1.520Commissioner for PatentsDeputy DirectorUSPTO Officials and Their Authority
Topic

Request Content Requirements

1 rules
StatutoryPermittedAlways
[mpep-2239-72b38a1f3d848e40085bd3e9]
Director Can Order Ex Parte Reexamination Without Request
Note:
The Director may initiate ex parte reexamination at any time during a patent's enforceability period, even without a request from outside the Office.

The Director, at any time during the period of enforceability of a patent, may determine whether or not a substantial new question of patentability is raised by patents or printed publications which have been discovered by the Director or which have been brought to the Director’s attention, even though no request for reexamination has been filed in accordance with § 1.510 or § 1.913. The Director may initiate ex parte reexamination without a request for reexamination pursuant to § 1.510 or § 1.913. Normally requests from outside the Office that the Director undertake reexamination on his own initiative will not be considered. Any determination to initiate ex parte reexamination under this section will become a part of the official file of the patent and will be mailed to the patent owner at the address as provided for in § 1.33(c).

Jump to MPEP Source · 37 CFR 1.510Request Content RequirementsSNQ CriteriaEx Parte Reexamination Request
Topic

Ex Parte Reexamination Request

1 rules
StatutoryPermittedAlways
[mpep-2239-c8ad1ef315261b96cbad0a1b]
Director Can Initiate Ex Parte Reexamination Without Request
Note:
The Director may initiate ex parte reexamination without a request from the Office or patent owner.

The Director, at any time during the period of enforceability of a patent, may determine whether or not a substantial new question of patentability is raised by patents or printed publications which have been discovered by the Director or which have been brought to the Director’s attention, even though no request for reexamination has been filed in accordance with § 1.510 or § 1.913. The Director may initiate ex parte reexamination without a request for reexamination pursuant to § 1.510 or § 1.913. Normally requests from outside the Office that the Director undertake reexamination on his own initiative will not be considered. Any determination to initiate ex parte reexamination under this section will become a part of the official file of the patent and will be mailed to the patent owner at the address as provided for in § 1.33(c).

Jump to MPEP Source · 37 CFR 1.510Ex Parte Reexamination RequestEx Parte ReexaminationRequest by Patent Owner
Topic

Request by Patent Owner

1 rules
StatutoryInformativeAlways
[mpep-2239-06f75a6afa335b5ccfd998e3]
Director Can Initiate Ex Parte Reexamination Without Request
Note:
The Director may initiate ex parte reexamination at any time during the patent's enforceability, even without a request from the patent owner.

The Director, at any time during the period of enforceability of a patent, may determine whether or not a substantial new question of patentability is raised by patents or printed publications which have been discovered by the Director or which have been brought to the Director’s attention, even though no request for reexamination has been filed in accordance with § 1.510 or § 1.913. The Director may initiate ex parte reexamination without a request for reexamination pursuant to § 1.510 or § 1.913. Normally requests from outside the Office that the Director undertake reexamination on his own initiative will not be considered. Any determination to initiate ex parte reexamination under this section will become a part of the official file of the patent and will be mailed to the patent owner at the address as provided for in § 1.33(c).

Jump to MPEP Source · 37 CFR 1.510Request by Patent OwnerCorrespondence Address RequirementsCorrespondence Address
Topic

Central Reexamination Unit Processing

1 rules
StatutoryRecommendedAlways
[mpep-2239-0a1cd796dc3da10937e2d3c4]
Memo Required for Clear Reexamination Warrant
Note:
An Office employee must submit a memorandum to OPLA through CRU or TC supervisory chain if they find an unusual fact situation warranting reexamination.

If an Office employee becomes aware of an unusual fact situation in a patent which the employee considers to clearly warrant reexamination, a memorandum setting forth these facts (including a proposed rejection of all appropriate claims) should be forwarded to the Office of Patent Legal Administration (OPLA) through the Central Reexamination Unit (CRU) or Technology Center (TC) supervisory chain of command.

Jump to MPEP Source · 37 CFR 1.520Central Reexamination Unit ProcessingEx Parte Reexamination
Topic

Reexamination Filing Fee

1 rules
StatutoryRecommendedAlways
[mpep-2239-da6fdd0d804eab139fb3fd52]
Request and Fee for Public Reexamination of Patent
Note:
A member of the public must file a request and fee under 37 CFR 1.20(c)(1) or (c)(2) to initiate reexamination of a patent in accordance with 37 CFR 1.510.

The Director of the USPTO will not normally consider requests to order reexamination at the Director’s initiative received from members of the public. If a member of the public desires reexamination of a patent, a request and fee under 37 CFR 1.20(c)(1) or (c)(2) should be filed in accordance with 37 CFR 1.510.

Jump to MPEP Source · 37 CFR 1.20(c)(1)Reexamination Filing FeeEx Parte Reexamination RequestPost-Issuance & Maintenance Fees

Citations

Primary topicCitation
Reexamination Filing Fee
Reexamination Order
37 CFR § 1.20(c)(1)
Ex Parte Reexamination
Ex Parte Reexamination Request
Request Content Requirements
Request by Patent Owner
37 CFR § 1.33(c)
Ex Parte Reexamination
Ex Parte Reexamination Request
Reexamination Filing Fee
Reexamination Order
Request Content Requirements
Request by Patent Owner
37 CFR § 1.510
Ex Parte Reexamination
Ex Parte Reexamination Request
Request Content Requirements
Request by Patent Owner
37 CFR § 1.913

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