MPEP § 2301.04 — Applicability of 35 U.S.C. 102(g) to Applications filed on or after March 16, 2013 (Annotated Rules)

§2301.04 Applicability of 35 U.S.C. 102(g) to Applications filed on or after March 16, 2013

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

This page consolidates and annotates all enforceable requirements under MPEP § 2301.04, 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.

Applicability of 35 U.S.C. 102(g) to Applications filed on or after March 16, 2013

This section addresses Applicability of 35 U.S.C. 102(g) to Applications filed on or after March 16, 2013. Primary authority: 35 U.S.C. 102, 35 U.S.C. 102(g), and 35 U.S.C. 3(n)(2). Contains: 1 guidance statement, 2 permissions, and 1 other statement.

Key Rules

Topic

AIA vs Pre-AIA Practice

3 rules
StatutoryPermittedAlways
[mpep-2301-04-20e9f5754b8eba228b8ce11a]
AIA Applications May Be Subject to Interference
Note:
Applications subject to AIA 35 U.S.C. 102 may also be eligible for interference proceedings.

Applications subject to AIA 35 U.S.C. 102 (see MPEP § 2159) may also be subject to an interference.

Jump to MPEP SourceAIA vs Pre-AIA PracticeAIA Effective DatesAIA Overview and Effective Dates
StatutoryInformativeAlways
[mpep-2301-04-6b7d470057d83e19ae0f1e59]
Pre-AIA 102(g) Applies to Patent Resulting from Preceding Application
Note:
The pre-AIA 35 U.S.C. 102(g) requirement applies to any patent derived from an application that previously met this requirement.

Even if AIA 35 U.S.C. 102 and 103 apply to a patent application, pre-AIA 35 U.S.C. 102(g) also applies to every claim in the application if it: (1) contains or contained at any time a claimed invention having an effective filing date as defined in 35 U.S.C. 100(i) that occurs before March 16, 2013; or (2) is ever designated as a continuation, divisional, or continuation-in-part of an application that contains or contained at any time such a claim. Pre-AIA 35 U.S.C. 102(g) also applies to any patent resulting from an application to which pre-AIA 35 U.S.C. 102(g) applied. See MPEP §§ 2138 and 2159.03.

Jump to MPEP SourceAIA vs Pre-AIA PracticeAIA Effective DatesDetermining Whether Application Is AIA or Pre-AIA
StatutoryRecommendedAlways
[mpep-2301-04-40f17d7affa684efacfad753]
Consult Specialist for Interference Between AIA and Pre-AIA Applications
Note:
Examiners must consult an Interference Practice Specialist when an application not subject to pre-AIA 35 U.S.C. 102(g) interferes with a patent that is.

Where an application not subject to pre-AIA 35 U.S.C. 102(g) interferes with a patent subject to pre-AIA 35 U.S.C. 102(g), the examiner should consult with an Interference Practice Specialist.

Jump to MPEP SourceAIA vs Pre-AIA PracticeAIA Effective DatesAIA Overview and Effective Dates
Topic

AIA Effective Dates

3 rules
StatutoryInformativeAlways
[mpep-2301-04-3f2f5e5521756fd811cf7f70]
Pre-AIA 102(g) Applies to Certain Claims in AIA Applications
Note:
Pre-AIA 35 U.S.C. 102(g) applies to claims with an effective filing date before March 16, 2013, or those derived from such claims.

Even if AIA 35 U.S.C. 102 and 103 apply to a patent application, pre-AIA 35 U.S.C. 102(g) also applies to every claim in the application if it: (1) contains or contained at any time a claimed invention having an effective filing date as defined in 35 U.S.C. 100(i) that occurs before March 16, 2013; or (2) is ever designated as a continuation, divisional, or continuation-in-part of an application that contains or contained at any time such a claim. Pre-AIA 35 U.S.C. 102(g) also applies to any patent resulting from an application to which pre-AIA 35 U.S.C. 102(g) applied. See MPEP §§ 2138 and 2159.03.

Jump to MPEP SourceAIA Effective DatesDetermining Whether Application Is AIA or Pre-AIAAIA Overview and Effective Dates
StatutoryPermittedAlways
[mpep-2301-04-23afae97dcc7a17a98cd5d9b]
Interference Subject for Mixed Date Claims
Note:
An application with claims from before and after March 16, 2013, may still face interference under pre-AIA rules.

Thus, if an application contains, or contained at any time, a claim having an effective filing date that occurs before March 16, 2013, and also contains, or contained at any time, a claim having an effective filing date that is on or after March 16, 2013, each claim may still be subject to an interference in accordance with pre-AIA 35 U.S.C. 102(g) while the application is also subject to AIA 35 U.S.C. 102 and 103. Pub. L. 112-29, § 3(n)(2), 125 Stat. at 293.

Jump to MPEP Source · 37 CFR 3(n)(2)AIA Effective DatesDetermining Whether Application Is AIA or Pre-AIAClaim-by-Claim Analysis
StatutoryInformativeAlways
[mpep-2301-04-48302460b9bd88a74b080ee7]
Interference Still Possible for Mixed Date Applications
Note:
An application containing claims with both pre-AIA and AIA effective filing dates may still be subject to an interference under pre-AIA 102(g) even if it also meets AIA 102 and 103 requirements.

Thus, if an application contains, or contained at any time, a claim having an effective filing date that occurs before March 16, 2013, and also contains, or contained at any time, a claim having an effective filing date that is on or after March 16, 2013, each claim may still be subject to an interference in accordance with pre-AIA 35 U.S.C. 102(g) while the application is also subject to AIA 35 U.S.C. 102 and 103. Pub. L. 112-29, § 3(n)(2), 125 Stat. at 293.

Jump to MPEP Source · 37 CFR 3(n)(2)AIA Effective DatesDetermining Whether Application Is AIA or Pre-AIAClaim-by-Claim Analysis

Citations

Primary topicCitation
AIA Effective Dates
AIA vs Pre-AIA Practice
35 U.S.C. § 100(i)
AIA Effective Dates
AIA vs Pre-AIA Practice
35 U.S.C. § 102
AIA Effective Dates
AIA vs Pre-AIA Practice
35 U.S.C. § 102(g)
AIA Effective Dates37 CFR § 3(n)(2)
AIA Effective Dates
AIA vs Pre-AIA Practice
MPEP § 2138
AIA vs Pre-AIA PracticeMPEP § 2159

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