MPEP § 2213 — Representative of Requester (Annotated Rules)

§2213 Representative of Requester

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

This page consolidates and annotates all enforceable requirements under MPEP § 2213, 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.

Representative of Requester

This section addresses Representative of Requester. Primary authority: 37 CFR 1.34, 37 CFR 1.510(f), and 37 CFR 1.510. Contains: 4 requirements, 1 prohibition, 1 permission, and 2 other statements.

Key Rules

Topic

Third Party Requester

3 rules
StatutoryPermittedAlways
[mpep-2213-eb1d6dac09a90dbff8c42dcb]
Attorney Can Act Under Power of Attorney or 37 CFR 1.34
Note:
An attorney may act on behalf of a client by either obtaining a power of attorney or acting in a representative capacity under 37 CFR 1.34, without delaying the processing of reexamination requests if the power of attorney is missing.

Where an attorney or agent files a request for an identified client (the requester), he or she may act under either a power of attorney from the client, or act in a representative capacity under 37 CFR 1.34, see 37 CFR 1.510(f). While the filing of the power of attorney is desirable, processing of the reexamination request will not be delayed due to its absence.

Jump to MPEP Source · 37 CFR 1.34Third Party RequesterEx Parte Reexamination RequestEx Parte Reexamination
StatutoryRequiredAlways
[mpep-2213-b4c88347192f338d6c18eb87]
Power of Attorney Required for Agent Representation
Note:
An agent must have a power of attorney to act on behalf of a requester in patent proceedings.

In order to act in a representative capacity under 37 CFR 1.34, an attorney or agent must set forth his or her registration number, his or her name, and his or her signature. In order to act under a power of attorney from a requester, an attorney or agent must be provided with a power of attorney. 37 CFR 1.32(c) provides that a “power of attorney may only name as representative” the inventors or registered patent practitioners. Thus, an attorney or agent representing a requester must be a registered patent practitioner.

Jump to MPEP Source · 37 CFR 1.34Third Party RequesterReexamination OrderPower of Attorney Requirements
StatutoryRequiredAlways
[mpep-2213-005f2493dbd86d9dda80cc5e]
Patent Practitioner Required for Power of Attorney
Note:
An attorney or agent representing a requester must be a registered patent practitioner to act under a power of attorney.

In order to act in a representative capacity under 37 CFR 1.34, an attorney or agent must set forth his or her registration number, his or her name, and his or her signature. In order to act under a power of attorney from a requester, an attorney or agent must be provided with a power of attorney. 37 CFR 1.32(c) provides that a “power of attorney may only name as representative” the inventors or registered patent practitioners. Thus, an attorney or agent representing a requester must be a registered patent practitioner.

Jump to MPEP Source · 37 CFR 1.34Third Party RequesterPower of Attorney RequirementsPower of Attorney
Topic

Ex Parte Reexamination Request

2 rules
StatutoryInformativeAlways
[mpep-2213-68718a4a6ef4d0108a422a41]
Processing Not Delayed Without Power of Attorney
Note:
The processing of reexamination requests will not be delayed even if a power of attorney is missing.

Where an attorney or agent files a request for an identified client (the requester), he or she may act under either a power of attorney from the client, or act in a representative capacity under 37 CFR 1.34, see 37 CFR 1.510(f). While the filing of the power of attorney is desirable, processing of the reexamination request will not be delayed due to its absence.

Jump to MPEP Source · 37 CFR 1.34Ex Parte Reexamination RequestEx Parte ReexaminationThird Party Requester
StatutoryRequiredAlways
[mpep-2213-920c18096d8018dad1ed8242]
Authority to Act Required for Ex Parte Reexamination Request
Note:
If any question about authority arises, proof must be provided to the Office.

If any question of authority to act is raised, proof of authority may be required by the Office.

Jump to MPEP Source · 37 CFR 1.510Ex Parte Reexamination RequestEx Parte Reexamination
Topic

Request by Patent Owner

2 rules
StatutoryInformativeAlways
[mpep-2213-61d5e2082c08335821b4b105]
Request for Ex Parte Reexamination by Representative
Note:
Correspondence will be directed to the patent owner at the address in 37 CFR 1.33(c) regardless of the filer's address when a request is filed on behalf of the patent owner.

If the request is filed by a person on behalf of the patent owner, correspondence will be directed to the patent owner at the address as indicated in 37 CFR 1.33(c), regardless of the address of the person filing the request. See MPEP § 2222 for a discussion of who receives correspondence on behalf of a patent owner and how changes in the correspondence address are to be made.

Jump to MPEP Source · 37 CFR 1.33(c)Request by Patent OwnerCorrespondence Address RequirementsCorrespondence with the Office
StatutoryProhibitedAlways
[mpep-2213-f828abeff0c4a10bf59feb2d]
Patent Owner Cannot Be Represented by Unregistered Practitioners During Reexamination
Note:
A patent owner must be represented during a reexamination proceeding only by someone registered to practice before the Office, as unregistered individuals are barred from signing amendments and other papers on their behalf.

A patent owner may not be represented during a reexamination proceeding by any person who is not registered to practice before the Office, since those individuals are prohibited by 37 CFR 1.33(c) from signing amendments and other papers filed in a reexamination proceeding on behalf of the patent owner.

Jump to MPEP Source · 37 CFR 1.33(c)Request by Patent OwnerCorrespondence Address RequirementsCorrespondence Address
Topic

POA Form Requirements

1 rules
StatutoryRequiredAlways
[mpep-2213-fb5ee7458bcd495eb6778a77]
Power of Attorney Form Requirements
Note:
An attorney or agent must include their registration number, name, and signature to act as a representative under 37 CFR 1.34.

In order to act in a representative capacity under 37 CFR 1.34, an attorney or agent must set forth his or her registration number, his or her name, and his or her signature. In order to act under a power of attorney from a requester, an attorney or agent must be provided with a power of attorney. 37 CFR 1.32(c) provides that a “power of attorney may only name as representative” the inventors or registered patent practitioners. Thus, an attorney or agent representing a requester must be a registered patent practitioner.

Jump to MPEP Source · 37 CFR 1.34POA Form RequirementsRegistration Number on SignatureReexamination Order

Citations

Primary topicCitation
POA Form Requirements
Third Party Requester
37 CFR § 1.32(c)
Request by Patent Owner37 CFR § 1.33(c)
Ex Parte Reexamination Request
POA Form Requirements
Third Party Requester
37 CFR § 1.34
Ex Parte Reexamination Request
Third Party Requester
37 CFR § 1.510(f)
Request by Patent OwnerMPEP § 2222

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