MPEP § 2120.01 — Rejections Under 35 U.S.C. 102(a)(1) and (a)(2) and Pre-AIA 35 U.S.C. 102(a), (b), or (e): Printed Publication or Patent (Annotated Rules)

§2120.01 Rejections Under 35 U.S.C. 102(a)(1) and (a)(2) and Pre-AIA 35 U.S.C. 102(a), (b), or (e): Printed Publication or Patent

USPTO MPEP version: BlueIron's Update: 2026-01-10

This page consolidates and annotates all enforceable requirements under MPEP § 2120.01, 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.

Rejections Under 35 U.S.C. 102(a)(1) and (a)(2) and Pre-AIA 35 U.S.C. 102(a), (b), or (e): Printed Publication or Patent

This section addresses Rejections Under 35 U.S.C. 102(a)(1) and (a)(2) and Pre-AIA 35 U.S.C. 102(a), (b), or (e): Printed Publication or Patent. Primary authority: 35 U.S.C. 102(a)(1), 35 U.S.C. 102(a), and 35 U.S.C. 102. Contains: 1 requirement, 2 guidance statements, 1 permission, and 2 other statements.

Key Rules

Topic

Determining Whether Application Is AIA or Pre-AIA

2 rules
StatutoryRecommendedAlways
[mpep-2120-01-e797718f4f099e64e45e0812]
Requirement for Determining Application's AIA Status
Note:
Examiners must determine if the application is subject to AIA or pre-AIA prior art provisions when a printed publication or patent discloses the claimed invention.

Once the examiner conducts a search and finds a printed publication or patent which discloses the claimed invention, the examiner should determine whether the rejection should be made under 35 U.S.C. 102(a)(1) or (a)(2) or, if the application is subject to the former prior art regime, pre-AIA 35 U.S.C. 102(a), (b), or (e). See MPEP § 2159 for guidance. Form paragraph 7.03.aia or 7.03.fti should be used in an Office action to indicate whether the application is being examined under the first inventor to file provisions of the AIA or the pre-AIA prior art provisions, respectively.

Jump to MPEP SourceDetermining Whether Application Is AIA or Pre-AIARejection on Prior ArtDetermining AIA vs Pre-AIA Applicability (MPEP 2159)
StatutoryRequiredAlways
[mpep-2120-01-0908bce94888b45dd189cfac]
Determine Effective Filing Date for Claimed Invention
Note:
The rule requires determining the effective filing date of each claimed invention and comparing it with the reference date to apply the appropriate paragraph of 35 U.S.C. 102.

In order to determine which paragraph of 35 U.S.C. 102 applies, the effective filing date of each claimed invention must be determined and compared with the date of the reference. See MPEP § 2139.01 regarding determination of effective filing date of the claimed invention under pre-AIA law and MPEP § 2152.01 regarding determination of effective filing date of the claimed invention under AIA law.

Jump to MPEP SourceDetermining Whether Application Is AIA or Pre-AIADetermining AIA vs Pre-AIA Applicability (MPEP 2159)AIA vs Pre-AIA Practice
Topic

Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)

2 rules
StatutoryInformativeAlways
[mpep-2120-01-627fd18727611cd7d8dc330d]
Requirement for Determining Pre-AIA or AIA Prior Art
Note:
The rule outlines how to determine whether to apply pre-AIA or AIA provisions for determining prior art under 35 U.S.C. 102.

See MPEP § 2152.05 for determining whether to apply 35 U.S.C. 102(a)(1) or (a)(2). See MPEP § 2139.02 for determining whether to apply pre-AIA 35 U.S.C. 102(a), (b), or (e).

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
StatutoryInformativeAlways
[mpep-2120-01-5ad21efd7be0cf23fe90365e]
Requirements for Overcoming Prior Art Rejections Under AIA and Pre-AIA 35 U.S.C. 102
Note:
The rule outlines the necessary actions to overcome rejections based on prior art under both pre-AIA and AIA versions of 35 U.S.C. 102.

See MPEP § 2152.06 for overcoming a rejection under 35 U.S.C. 102(a)(1) or (a)(2). See MPEP §§ 2132.01, 2133.02(a), and 2136.05 et seq. for overcoming prior art rejections under pre-AIA 35 U.S.C. 102(a), (b), and (e), respectively.

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
Topic

Form Paragraph Usage

1 rules
StatutoryRecommendedAlways
[mpep-2120-01-f1434bdeaaa7d43eee113345]
Form Paragraphs for AIA and Pre-AIA Examination
Note:
Use form paragraph 7.03.aia or 7.03.fti to indicate examination under AIA or pre-AIA provisions.

Once the examiner conducts a search and finds a printed publication or patent which discloses the claimed invention, the examiner should determine whether the rejection should be made under 35 U.S.C. 102(a)(1) or (a)(2) or, if the application is subject to the former prior art regime, pre-AIA 35 U.S.C. 102(a), (b), or (e). See MPEP § 2159 for guidance. Form paragraph 7.03.aia or 7.03.fti should be used in an Office action to indicate whether the application is being examined under the first inventor to file provisions of the AIA or the pre-AIA prior art provisions, respectively.

Jump to MPEP SourceForm Paragraph UsageForm ParagraphsRejection on Prior Art
Topic

Assignee as Applicant Signature

1 rules
StatutoryPermittedAlways
[mpep-2120-01-8d08ea5c78e099d5bf5fc109]
Claims Must Be Patentably Distinguished Over Prior Art
Note:
Applicants must either argue that claims are patentably distinguishable from prior art or amend the claims to achieve this distinction.

In all applications, an applicant may overcome a 35 U.S.C. 102 rejection by persuasively arguing that the claims are patentably distinguishable from the prior art, or by amending the claims to patentably distinguish over the prior art. Additional ways available to overcome a rejection based on 35 U.S.C. 102 prior art depend on whether or not any claim in the application being examined is subject to the first inventor to file provisions of the AIA.

Jump to MPEP SourceAssignee as Applicant SignatureApplicant and Assignee Filing Under AIAAIA vs Pre-AIA Practice
Topic

AIA vs Pre-AIA Practice

1 rules
StatutoryInformativeAlways
[mpep-2120-01-990ddc6cb4015672d2905f69]
First Inventor to File Affects Rejection Overcomes
Note:
The method for overcoming a rejection based on prior art under 35 U.S.C. 102 varies depending on whether the application is subject to the first inventor to file provisions of the America Invents Act (AIA).

In all applications, an applicant may overcome a 35 U.S.C. 102 rejection by persuasively arguing that the claims are patentably distinguishable from the prior art, or by amending the claims to patentably distinguish over the prior art. Additional ways available to overcome a rejection based on 35 U.S.C. 102 prior art depend on whether or not any claim in the application being examined is subject to the first inventor to file provisions of the AIA.

Jump to MPEP SourceAIA vs Pre-AIA PracticeAssignee as Applicant SignatureApplicant and Assignee Filing Under AIA
Topic

First Inventor to File (FITF) System

1 rules
MPEP GuidanceRecommendedAlways
[mpep-2120-01-eaeca92bc942947c5530d3df]
Form Paragraph for FITF Applications
Note:
This form paragraph must be used in any application subject to the first inventor to file provisions of the AIA.

This form paragraph should be used in any application subject to the first inventor to file provisions of the AIA.

MPEP § 2120.01First Inventor to File (FITF) SystemAIA vs Pre-AIA Practice
Topic

AIA Effective Dates

1 rules
MPEP GuidanceRecommendedAlways
[mpep-2120-01-4361d403ece0cccbeca822b1]
Requirement for Form Paragraph After March 16, 2013
Note:
This form paragraph must be used in any application filed on or after March 16, 2013 that is subject to the pre-AIA prior art provisions.

This form paragraph should be used in any application filed on or after March 16, 2013 that is subject to the pre-AIA prior art provisions.

MPEP § 2120.01AIA Effective DatesPre-AIA 102(e) – Earlier US Applications (MPEP 2136)AIA Overview and Effective Dates

Citations

Primary topicCitation
AIA vs Pre-AIA Practice
Assignee as Applicant Signature
Determining Whether Application Is AIA or Pre-AIA
35 U.S.C. § 102
Determining Whether Application Is AIA or Pre-AIA
Form Paragraph Usage
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
35 U.S.C. § 102(a)
Determining Whether Application Is AIA or Pre-AIA
Form Paragraph Usage
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
35 U.S.C. § 102(a)(1)
MPEP § 2124
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)MPEP § 2132.01
Determining Whether Application Is AIA or Pre-AIAMPEP § 2139.01
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)MPEP § 2139.02
Determining Whether Application Is AIA or Pre-AIAMPEP § 2152.01
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)MPEP § 2152.05
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)MPEP § 2152.06
Determining Whether Application Is AIA or Pre-AIA
Form Paragraph Usage
MPEP § 2159
Determining Whether Application Is AIA or Pre-AIA
Form Paragraph Usage
Form Paragraph § 7.03

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: 2026-01-10