MPEP § 2304.02 — Applicant Suggestion (Annotated Rules)

§2304.02 Applicant Suggestion

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

This page consolidates and annotates all enforceable requirements under MPEP § 2304.02, 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.

Applicant Suggestion

This section addresses Applicant Suggestion. Primary authority: 37 CFR 41.202 and 37 CFR 41.202(a). Contains: 2 requirements, 3 permissions, and 5 other statements.

Key Rules

Topic

Declaration of Interference

5 rules
StatutoryRequiredAlways
[mpep-2304-02-544461494179faf32da24bcd]
Requirement for Interference Suggestion
Note:
An applicant must provide sufficient information to identify the application or patent, specify claims believed to interfere, and show how they correspond to counts.
(a) Applicant. An applicant, including a reissue applicant, may suggest an interference with another application or a patent. The suggestion must:
  • (1) Provide sufficient information to identify the application or patent with which the applicant seeks an interference,
  • (2) Identify all claims the applicant believes interfere, propose one or more counts, and show how the claims correspond to one or more counts,
  • (3) For each count, provide a claim chart comparing at least one claim of each party corresponding to the count and show why the claims interfere within the meaning of § 41.203(a),
  • (4) Explain in detail why the applicant will prevail on priority,
  • (5) If a claim has been added or amended to provoke an interference, provide a claim chart showing the written description for each claim in the applicant’s specification, and
  • (6) For each constructive reduction to practice for which the applicant wishes to be accorded benefit, provide a chart showing where the disclosure provides a constructive reduction to practice within the scope of the interfering subject matter.
Jump to MPEP Source · 37 CFR 41.202Declaration of InterferenceInterference Proceedings (Pre-AIA)Requirements for Declaring Interference
StatutoryInformativeAlways
[mpep-2304-02-c6e7f4b7513dcfb0eb4ed34c]
Claims Must Correspond to Interfering Counts
Note:
An applicant must identify all interfering claims and propose counts showing how they correspond.

(a) Applicant. An applicant, including a reissue applicant, may suggest an interference with another application or a patent. The suggestion must:

(2) Identify all claims the applicant believes interfere, propose one or more counts, and show how the claims correspond to one or more counts,

Jump to MPEP Source · 37 CFR 41.202Declaration of InterferenceInterference Proceedings (Pre-AIA)Reissue Patent Practice
StatutoryInformativeAlways
[mpep-2304-02-5c65b472b61a2c65740515cc]
Applicant Must Prevail on Priority Claim
Note:
The applicant must provide sufficient evidence to demonstrate that they are entitled to the priority date of their application.

(a) Applicant. An applicant, including a reissue applicant, may suggest an interference with another application or a patent. The suggestion must:

(4) Explain in detail why the applicant will prevail on priority,

Jump to MPEP Source · 37 CFR 41.202Declaration of InterferenceInterference Proceedings (Pre-AIA)Reissue Patent Practice
StatutoryPermittedAlways
[mpep-2304-02-e5526691a0f5e47462d7673f]
Requirement for Interference Suggestion Compliance
Note:
The rule requires acknowledging an applicant's interference suggestion that fails to meet specific requirements.

Form paragraphs 23.06 to 23.06.06 may be used to acknowledge applicant’s suggestion for interference under 37 CFR 41.202(a) that failed to comply with one or more of paragraphs (a)(1) to (a)(6) of 37 CFR 41.202.

Jump to MPEP Source · 37 CFR 41.202(a)Declaration of InterferenceInterference Proceedings (Pre-AIA)
StatutoryInformativeAlways
[mpep-2304-02-42089eecc9b48f89abe0105c]
Requirement for Proper Interference Declaration
Note:
This rule requires that an interference declaration be properly made in compliance with specific requirements outlined in 37 CFR 41.202(a).

1. Use this form paragraph if applicant has suggested an interference under 37 CFR 41.202(a) and applicant has failed to comply with one or more of paragraphs (a)(1) to (a)(6) of 37 CFR 41.202.

37 CFR 1.77 · 37 CFR 41.202(a)Declaration of InterferenceInterference Proceedings (Pre-AIA)
Topic

PTAB Jurisdiction

4 rules
StatutoryRequiredAlways
[mpep-2304-02-b07f625422e84cf85e75729d]
Examiner Must Review Formal Sufficiency of Interference Suggestion
Note:
An examiner must review an applicant's interference suggestion for formal sufficiency under 37 CFR 41.202(a).

When an applicant suggests an interference under 37 CFR 41.202(a), an examiner must review the suggestion for formal sufficiency. As explained in MPEP § 2304.02(c), the examiner is generally not responsible for determining the substantive adequacy of any priority showing. The examiner may, however, offer pertinent observations on any showing when the suggested interference is referred to the Board. The observations may be included as an attachment to the Form PTO-850.

Jump to MPEP Source · 37 CFR 41.202(a)PTAB JurisdictionPTAB Contested Case ProceduresDeclaration of Interference
StatutoryInformativeAlways
[mpep-2304-02-b56e874bc47d5ab26ae69dee]
Examiner Not Responsible for Priority Adequacy
Note:
The examiner is generally not required to assess the substantive adequacy of a priority claim when an interference is suggested.

When an applicant suggests an interference under 37 CFR 41.202(a), an examiner must review the suggestion for formal sufficiency. As explained in MPEP § 2304.02(c), the examiner is generally not responsible for determining the substantive adequacy of any priority showing. The examiner may, however, offer pertinent observations on any showing when the suggested interference is referred to the Board. The observations may be included as an attachment to the Form PTO-850.

Jump to MPEP Source · 37 CFR 41.202(a)PTAB JurisdictionPTAB Contested Case ProceduresDeclaration of Interference
StatutoryPermittedAlways
[mpep-2304-02-667293d748ac4d172a2e74ad]
Examiner May Offer Observations on Priority Showing When Interference Suggested to Board
Note:
The examiner can provide observations on any priority showing when an interference is suggested and referred to the Board.

When an applicant suggests an interference under 37 CFR 41.202(a), an examiner must review the suggestion for formal sufficiency. As explained in MPEP § 2304.02(c), the examiner is generally not responsible for determining the substantive adequacy of any priority showing. The examiner may, however, offer pertinent observations on any showing when the suggested interference is referred to the Board. The observations may be included as an attachment to the Form PTO-850.

Jump to MPEP Source · 37 CFR 41.202(a)PTAB JurisdictionPTAB Contested Case ProceduresEx Parte Appeals to PTAB
StatutoryPermittedAlways
[mpep-2304-02-f01871a76f5e043807b0d625]
Examiner May Include Observations on Priority Showing as PTO-850 Attachment
Note:
An examiner may attach pertinent observations on a priority showing when an interference is suggested, to be included in Form PTO-850.

When an applicant suggests an interference under 37 CFR 41.202(a), an examiner must review the suggestion for formal sufficiency. As explained in MPEP § 2304.02(c), the examiner is generally not responsible for determining the substantive adequacy of any priority showing. The examiner may, however, offer pertinent observations on any showing when the suggested interference is referred to the Board. The observations may be included as an attachment to the Form PTO-850.

Jump to MPEP Source · 37 CFR 41.202(a)PTAB JurisdictionPTAB Contested Case ProceduresDeclaration of Interference
Topic

Interference Proceedings (Pre-AIA)

1 rules
StatutoryInformativeAlways
[mpep-2304-02-3ff3a34e53f5af0012e0df3c]
Claim Chart for Interference Count Comparison Required
Note:
Applicants must provide a claim chart comparing claims from each party for each count to demonstrate interference.

(a) Applicant. An applicant, including a reissue applicant, may suggest an interference with another application or a patent. The suggestion must:

(3) For each count, provide a claim chart comparing at least one claim of each party corresponding to the count and show why the claims interfere within the meaning of § 41.203(a),

Jump to MPEP Source · 37 CFR 41.202Interference Proceedings (Pre-AIA)PTAB Contested Case ProceduresDeclaration of Interference
Topic

Requirements for Declaring Interference

1 rules
StatutoryInformativeAlways
[mpep-2304-02-f0d34f904a425ac95660d8b4]
Disclosure Must Show Constructive Reduction to Practice
Note:
Applicants must provide a chart demonstrating where the disclosure shows a constructive reduction to practice within the interfering subject matter for each claimed benefit.

(a) Applicant. An applicant, including a reissue applicant, may suggest an interference with another application or a patent. The suggestion must:

(6) For each constructive reduction to practice for which the applicant wishes to be accorded benefit, provide a chart showing where the disclosure provides a constructive reduction to practice within the scope of the interfering subject matter.

Jump to MPEP Source · 37 CFR 41.202Requirements for Declaring InterferenceInterference Proceedings (Pre-AIA)Declaration of Interference

Examiner Form Paragraphs

Examiner form paragraphs are standard language that you might see in an Office Action or communication from the USPTO. Examiners have latitude to change the form paragraphs, but you will often see this exact language.

¶ 23.06 ¶ 23.06 Applicant Suggesting an Interference

Citations

Primary topicCitation
Declaration of Interference37 CFR § 41.202
Declaration of Interference
PTAB Jurisdiction
37 CFR § 41.202(a)
Declaration of Interference
Interference Proceedings (Pre-AIA)
37 CFR § 41.203(a)
PTAB JurisdictionMPEP § 2304.02(c)
Form Paragraph § 23.06.04

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