MPEP § 2233 — Processing in Central Reexamination Unit and Technology Center (Annotated Rules)

§2233 Processing in Central Reexamination Unit and Technology Center

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

This page consolidates and annotates all enforceable requirements under MPEP § 2233, 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.

Processing in Central Reexamination Unit and Technology Center

This section addresses Processing in Central Reexamination Unit and Technology Center. Primary authority: 35 U.S.C. 302, 35 U.S.C. 2285, and 37 CFR 1.20(c)(1). Contains: 2 requirements and 3 other statements.

Key Rules

Topic

Interviews in Reexamination

2 rules
StatutoryInformativeAlways
[mpep-2233-480fff35bb551a49604af30b]
Transmittal Form for Office Actions Required
Note:
A transmittal form with the requester’s address is used to forward copies of Office actions and any cited references to the requester. This form is attached to each issued Office action to avoid retyping addresses.

A transmittal form with the requester’s address will be used to forward copies of Office actions (and any references cited in the Office actions) to the requester. Whenever an Office action is issued, a copy of this form will be made and attached to a copy of the Office action. The use of this form removes the need to retype the requester’s address each time a mailing is required. When the patent owner is the requester, no such form is needed.

Jump to MPEP SourceInterviews in ReexaminationCentral Reexamination Unit ProcessingEx Parte Reexamination
StatutoryRequiredAlways
[mpep-2233-706e80b8d10b8f6c08291f1d]
Transmittal Form for Office Actions
Note:
A form with the requester’s address is used to forward Office actions and references, but not when the patent owner is the requester.

A transmittal form with the requester’s address will be used to forward copies of Office actions (and any references cited in the Office actions) to the requester. Whenever an Office action is issued, a copy of this form will be made and attached to a copy of the Office action. The use of this form removes the need to retype the requester’s address each time a mailing is required. When the patent owner is the requester, no such form is needed.

Jump to MPEP SourceInterviews in ReexaminationCentral Reexamination Unit ProcessingEx Parte Reexamination
Topic

Reexamination Filing Fee

1 rules
StatutoryInformativeAlways
[mpep-2233-e4866a17ab1e2511475bba68]
Fees for Reexamination Request and Appeals
Note:
This rule outlines the fees required for filing a reexamination request, adding claims, extensions of time, appeals, appeal forwarding, and oral hearings.

Under reexamination pursuant to 35 U.S.C. 302, there are fees for the request (37 CFR 1.20(c)(1) or (c)(2)), for addition of claims (excess claims fees under 37 CFR 1.20(c)(3) and (c)(4)), for an extension of time, and for any appeal, appeal forwarding fee, and oral hearing fees under 37 CFR 41.20(b). No fee is required for issue of the reexamination certificate.

Jump to MPEP Source · 37 CFR 1.20(c)(1)Reexamination Filing FeeOral HearingAppeals in Reexamination
Topic

Reexamination Certificate

1 rules
StatutoryRequiredAlways
[mpep-2233-127335d6ecba6ba466a3b44c]
No Fee for Reexamination Certificate Issuance
Note:
No fee is required when issuing a reexamination certificate during the reexamination process.

Under reexamination pursuant to 35 U.S.C. 302, there are fees for the request (37 CFR 1.20(c)(1) or (c)(2)), for addition of claims (excess claims fees under 37 CFR 1.20(c)(3) and (c)(4)), for an extension of time, and for any appeal, appeal forwarding fee, and oral hearing fees under 37 CFR 41.20(b). No fee is required for issue of the reexamination certificate.

Jump to MPEP Source · 37 CFR 1.20(c)(1)Reexamination CertificateReexamination Filing FeeConclusion of Ex Parte Reexamination
Topic

Ex Parte Reexamination

1 rules
StatutoryInformativeAlways
[mpep-2233-e073fce4dddb550ee23a9ac3]
Fees Required for Reexamination Petitions
Note:
Petitions related to reexamination proceedings must be accompanied by the appropriate fees as specified in 37 CFR 1.17(m) and 1.20(c)(6).

Any petitions relating to a reexamination proceeding require fees (37 CFR 1.17(m) and 1.20(c)(6)).

Jump to MPEP Source · 37 CFR 1.17(m)Ex Parte ReexaminationCentral Reexamination Unit Processing
Topic

Merged Reexamination Proceedings

1 rules
StatutoryRequiredAlways
[mpep-2233-e40f5e0a8fdc1ae8281d5e93]
Single Fee for Merged Reexamination Proceedings
Note:
Only one fee is required even when multiple copies of submissions are needed in a merged reexamination proceeding.

When a fee is required in a merged proceeding (see MPEP § 2283 and § 2285), only a single fee is needed even though multiple copies of the submissions (one for each file) are required.

Jump to MPEP SourceMerged Reexamination ProceedingsCentral Reexamination Unit ProcessingEx Parte Reexamination
Topic

Examination in Reexamination

1 rules
StatutoryInformativeAlways
[mpep-2233-fa6fbc02813e821ec65ea5e7]
Transmittal Form for Office Actions
Note:
A copy of a transmittal form with the requester’s address is attached to each issued Office action.

A transmittal form with the requester’s address will be used to forward copies of Office actions (and any references cited in the Office actions) to the requester. Whenever an Office action is issued, a copy of this form will be made and attached to a copy of the Office action. The use of this form removes the need to retype the requester’s address each time a mailing is required. When the patent owner is the requester, no such form is needed.

Jump to MPEP SourceExamination in ReexaminationCentral Reexamination Unit ProcessingEx Parte Reexamination

Citations

Primary topicCitation
Merged Reexamination Proceedings35 U.S.C. § 2285
Reexamination Certificate
Reexamination Filing Fee
35 U.S.C. § 302
Ex Parte Reexamination37 CFR § 1.17(m)
Reexamination Certificate
Reexamination Filing Fee
37 CFR § 1.20(c)(1)
Reexamination Certificate
Reexamination Filing Fee
37 CFR § 1.20(c)(3)
Reexamination Certificate
Reexamination Filing Fee
37 CFR § 41.20(b)
Merged Reexamination ProceedingsMPEP § 2283

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