MPEP § 1404 — Submission of Papers Where Reissue Patent Is in Litigation (Annotated Rules)

§1404 Submission of Papers Where Reissue Patent Is in Litigation

USPTO MPEP version: BlueIron's Update: 2026-01-17

This page consolidates and annotates all enforceable requirements under MPEP § 1404, 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.

Submission of Papers Where Reissue Patent Is in Litigation

This section addresses Submission of Papers Where Reissue Patent Is in Litigation. Primary authority: 37 CFR 1.291(c) and 37 CFR 1442.04. Contains: 1 guidance statement and 5 other statements.

Key Rules

Topic

Disclosure of Litigation

4 rules
StatutoryRecommendedAlways
[mpep-1404-9ebcb7df51e98da0e20c699e]
Reissue Litigation Documents Must Be Clearly Marked
Note:
Any documents submitted for reissue litigation must be clearly marked as such to receive special attention during examination.

Marking of papers: Any “Reissue Litigation” documents submitted to the Office should be clearly marked as such. Papers marked “REISSUE LITIGATION” will be given special attention. See MPEP § 1442.01 through § 1442.04 for examination of litigation-related reissue applications. Protestor’s participation, including the submission of papers, is limited in accordance with 37 CFR 1.291(c). See MPEP § 1901.07 for information on protestor’s participation.

Jump to MPEP Source · 37 CFR 1.291(c)Disclosure of LitigationReissue and LitigationReissue Patent Practice
StatutoryInformativeAlways
[mpep-1404-2d27bdbea30610585c7242e0]
Papers Marked Reissue Litigation Require Special Attention
Note:
Papers marked 'REISSUE LITIGATION' must be given special attention during examination of litigation-related reissue applications.

Marking of papers: Any “Reissue Litigation” documents submitted to the Office should be clearly marked as such. Papers marked “REISSUE LITIGATION” will be given special attention. See MPEP § 1442.01 through § 1442.04 for examination of litigation-related reissue applications. Protestor’s participation, including the submission of papers, is limited in accordance with 37 CFR 1.291(c). See MPEP § 1901.07 for information on protestor’s participation.

Jump to MPEP Source · 37 CFR 1.291(c)Disclosure of LitigationStatutory Authority for ExaminationReissue and Litigation
MPEP GuidanceInformativeAlways
[mpep-1404-95cc948e7edbf6f0902d1bb1]
Marking Required for Reissue Litigation Papers
Note:
Applicants and protestors must mark their papers with 'REISSUE LITIGATION' and the relevant office unit when submitting papers for reissue patents involved in litigation.

Marking of envelope: Applicants and protestors (see MPEP § 1901.03) submitting papers for entry in reissue applications of patents involved in litigation are requested to mark the outside envelope and the top right-hand portion of the papers with the words “REISSUE LITIGATION” and with the art unit or other area of the United States Patent and Trademark Office in which the reissue application is located, e.g., Commissioner for Patents, Patent Trial and Appeal Board, Office of Patent Legal Administration, Office of Data Management, etc.

Jump to MPEP SourceDisclosure of LitigationPTAB JurisdictionReissue and Litigation
MPEP GuidanceInformativeAlways
[mpep-1404-1b69a0e4da44d812590b3972]
Mark Papers for Reissue Litigation
Note:
Applicants and protestors must mark papers with 'REISSUE LITIGATION' and the relevant USPTO unit for reissue applications involved in litigation.

Marking of envelope: Applicants and protestors (see MPEP § 1901.03) submitting papers for entry in reissue applications of patents involved in litigation are requested to mark the outside envelope and the top right-hand portion of the papers with the words “REISSUE LITIGATION” and with the art unit or other area of the United States Patent and Trademark Office in which the reissue application is located, e.g., Commissioner for Patents, Patent Trial and Appeal Board, Office of Patent Legal Administration, Office of Data Management, etc.

Jump to MPEP SourceDisclosure of LitigationPTAB JurisdictionReissue and Litigation
Topic

Prior Art Submissions in Protests

1 rules
StatutoryInformativeAlways
[mpep-1404-a990be4ff1fb9ad9c723dd1e]
Marking of Reissue Litigation Papers Required
Note:
Papers submitted for reissue litigation must be clearly marked and will receive special attention during examination.

Marking of papers: Any “Reissue Litigation” documents submitted to the Office should be clearly marked as such. Papers marked “REISSUE LITIGATION” will be given special attention. See MPEP § 1442.01 through § 1442.04 for examination of litigation-related reissue applications. Protestor’s participation, including the submission of papers, is limited in accordance with 37 CFR 1.291(c). See MPEP § 1901.07 for information on protestor’s participation.

Jump to MPEP Source · 37 CFR 1.291(c)Prior Art Submissions in ProtestsDisclosure of LitigationStatutory Authority for Examination
Topic

Protest Content and Evidence

1 rules
StatutoryInformativeAlways
[mpep-1404-1823554f18768d69fea596df]
Limitations on Protestor's Submission of Papers
Note:
The submission of protest-related papers is limited according to 37 CFR 1.291(c). See MPEP § 1901.07 for details on protest participation.

Marking of papers: Any “Reissue Litigation” documents submitted to the Office should be clearly marked as such. Papers marked “REISSUE LITIGATION” will be given special attention. See MPEP § 1442.01 through § 1442.04 for examination of litigation-related reissue applications. Protestor’s participation, including the submission of papers, is limited in accordance with 37 CFR 1.291(c). See MPEP § 1901.07 for information on protestor’s participation.

Jump to MPEP Source · 37 CFR 1.291(c)Protest Content and EvidenceProtest PracticePrior Art Submissions in Protests

Citations

Primary topicCitation
Disclosure of Litigation
Prior Art Submissions in Protests
Protest Content and Evidence
37 CFR § 1.291(c)
Disclosure of Litigation
Prior Art Submissions in Protests
Protest Content and Evidence
37 CFR § 1442.04
Disclosure of Litigation
Prior Art Submissions in Protests
Protest Content and Evidence
MPEP § 1442.01
Disclosure of LitigationMPEP § 1901.03
Disclosure of Litigation
Prior Art Submissions in Protests
Protest Content and Evidence
MPEP § 1901.07

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: 2026-01-17