MPEP § 717.01(a)(1) — Evaluation of Declarations or Affidavits under 37 CFR 1.130(a) (Annotated Rules)

§717.01(a)(1) Evaluation of Declarations or Affidavits under 37 CFR 1.130(a)

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

This page consolidates and annotates all enforceable requirements under MPEP § 717.01(a)(1), 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.

Evaluation of Declarations or Affidavits under 37 CFR 1.130(a)

This section addresses Evaluation of Declarations or Affidavits under 37 CFR 1.130(a). Primary authority: 37 CFR 1.130(a). Contains: 6 prohibitions.

Key Rules

Topic

Content of Patent Application Publication

2 rules
StatutoryProhibitedAlways
[mpep-717-01-a-1-5f5aad6e1f3d5b4a218fdfa7]
Invention Derived from Named Inventor
Note:
The affidavit or declaration cannot claim that an inventor named in the U.S. patent or application derived the claimed invention from another named inventor.

In evaluating whether a declaration under 37 CFR 1.130(a) is effective, Office personnel will consider the following criteria:
(A) Whether the disclosure, which was applied in the rejection and is addressed in the affidavit or declaration, is subject to the exceptions of 35 U.S.C. 102(b)(1)(A) or 102(b)(2)(A). The provision of 37 CFR 1.130(a) is not available:
(2) When the disclosure that is applied in a rejection is

(c) the affidavit or declaration contends that an inventor named in the U.S. patent or U.S. patent application publication derived the claimed invention from the inventor or a joint inventor named in the application or patent.

Jump to MPEP Source · 37 CFR 1.130(a)Content of Patent Application PublicationPublication of Patent ApplicationsNovelty / Prior Art
StatutoryProhibitedAlways
[mpep-717-01-a-1-51dd61e6b5a8a5028784930e]
Exception for Disclosure Applied in Rejection Not Covered by 37 CFR 1.130(a)
Note:
Office personnel will not consider the provision of 37 CFR 1.130(a) if the disclosure applied in a rejection is subject to exceptions under 35 U.S.C. 102(b)(1)(A) or 102(b)(2)(A).
(2) When the disclosure that is applied in a rejection is
  • (a) a U.S. patent or U.S. patent application publication that
  • (b) claims an invention that is the same or substantially the same as the applicant’s or patent owner’s claimed invention, and
  • (c) the affidavit or declaration contends that an inventor named in the U.S. patent or U.S. patent application publication derived the claimed invention from the inventor or a joint inventor named in the application or patent.
Jump to MPEP Source · 37 CFR 1.130(a)Content of Patent Application PublicationPublication of Patent ApplicationsNovelty / Prior Art
Topic

PTAB Contested Case Procedures

2 rules
StatutoryProhibitedAlways
[mpep-717-01-a-1-4d5757089d63dc31c46413b8]
Declaration Must Be Supported by Facts
Note:
A declaration from an inventor without supporting facts is insufficient if contradicted by another named author's statement in a different application.

In evaluating whether a declaration under 37 CFR 1.130(a) is effective, Office personnel will consider the following criteria:
(B) Whether the affidavit or declaration shows sufficient facts, in weight and character, to establish that Some factors to consider are the following:

(2) A mere statement from the inventor or a joint inventor, without any accompanying reasonable explanation, may not be sufficient where there is evidence to the contrary, such as a contrary statement from another named author that was filed in another application on behalf of another party.

Jump to MPEP Source · 37 CFR 1.130(a)PTAB Contested Case Procedures
StatutoryProhibitedAlways
[mpep-717-01-a-1-138b0fe50abbd457e8957c97]
Sufficient Facts Required for Effective Declaration
Note:
Office personnel must consider whether a declaration under 37 CFR 1.130(a) provides sufficient facts to establish inventorship, even if contrary statements exist from other named authors.

In evaluating whether a declaration under 37 CFR 1.130(a) is effective, Office personnel will consider the following criteria:
(B) Whether the affidavit or declaration shows sufficient facts, in weight and character, to establish that Some factors to consider are the following:

See Ex parte Kroger, 219 USPQ 370 (Bd. App. 1982) (affirming rejection notwithstanding declarations by the alleged actual inventors as to their inventorship in view of a non-applicant author submitting a letter declaring the non-applicant author’s inventorship).

Jump to MPEP Source · 37 CFR 1.130(a)PTAB Contested Case Procedures
Topic

AIA vs Pre-AIA Practice

1 rules
StatutoryInformativeAlways
[mpep-717-01-a-1-fcab860896af6896c0f38fb9]
First Inventor to File Provisions
Note:
This rule applies to applications subject to the first inventor to file provisions of the AIA, detailing how declarations or affidavits under 37 CFR 1.130(a) must be evaluated.

[Editor Note: This MPEP section is only applicable to applications subject to the first inventor to file provisions of the AIA. See 35 U.S.C. 100 (note) and MPEP § 2159. For applications subject to pre-AIA 35 U.S.C. 102 and pre-AIA 35 U.S.C. 103, see MPEP § 716.10 for affidavits or declarations of attribution under 37 CFR 1.132.]

Jump to MPEP Source · 37 CFR 1.132AIA vs Pre-AIA PracticeObviousness Under AIA (MPEP 2158)Obviousness Under Pre-AIA (MPEP 2141-2146)
Topic

Obviousness Under AIA (MPEP 2158)

1 rules
StatutoryInformativeAlways
[mpep-717-01-a-1-c482a7a74e6ebcf89206084c]
Requirement for Affidavits or Declarations of Attribution Under 37 CFR 1.132 for Pre-AIA Applications
Note:
For applications subject to pre-AIA 35 U.S.C. 102 and 103, affidavits or declarations of attribution under 37 CFR 1.132 must be submitted.

[Editor Note: This MPEP section is only applicable to applications subject to the first inventor to file provisions of the AIA. See 35 U.S.C. 100 (note) and MPEP § 2159. For applications subject to pre-AIA 35 U.S.C. 102 and pre-AIA 35 U.S.C. 103, see MPEP § 716.10 for affidavits or declarations of attribution under 37 CFR 1.132.]

Jump to MPEP Source · 37 CFR 1.132Obviousness Under AIA (MPEP 2158)Obviousness Under Pre-AIA (MPEP 2141-2146)AIA vs Pre-AIA Practice
Topic

Assignee as Applicant Signature

1 rules
StatutoryInformativeAlways
[mpep-717-01-a-1-66d61a721afa73c0c634c5f3]
Requirement for Showing Disclosure by Inventor
Note:
The applicant must show that the disclosure was made by the inventor or obtained from them.

In making a submission under 37 CFR 1.130(a), the applicant or patent owner is attempting to show that: (1) the disclosure was made by the inventor or a joint inventor; or (2) the subject matter disclosed was obtained directly or indirectly from the inventor or a joint inventor. In other words, the affidavits or declarations are seeking to attribute an activity, a reference, or part of a reference to the inventor(s) to show that the disclosure is not available as prior art under 35 U.S.C. 102(a). Such declarations or affidavits will be similar to affidavits or declarations under 37 CFR 1.132 for application subject to pre-AIA 35 U.S.C. 102(a) or 102(e). See MPEP § 716.10 and In re Katz, 687 F.2d 450, 455, 215 USPQ 14, 18 (CCPA 1982). Affidavits or declarations of attribution for applications subject to pre-AIA 35 U.S.C. 102 remain as affidavits or declarations under 37 CFR 1.132. Thus, the Office will treat affidavits or declarations of attribution for applications subject to the current 35 U.S.C. 102 as affidavits or declarations under 37 CFR 1.130, and affidavits or declarations of attribution for applications subject to pre-AIA 35 U.S.C. 102 as affidavits or declarations under 37 CFR 1.132, regardless of whether the affidavit or declaration is designated as an affidavit or declaration under 37 CFR 1.130, 1.131, or 1.132.

Jump to MPEP Source · 37 CFR 1.130(a)Assignee as Applicant SignatureApplicant and Assignee Filing Under AIAAntedating Reference – Pre-AIA (MPEP 2136.05)
Topic

Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)

1 rules
StatutoryInformativeAlways
[mpep-717-01-a-1-f76745b2e6a958ded4ba8aee]
Disclosure Attributions to Inventors for Prior Art
Note:
Affidavits or declarations are used to attribute a disclosure to the inventor(s) to show it is not prior art under 35 U.S.C. 102(a).

In making a submission under 37 CFR 1.130(a), the applicant or patent owner is attempting to show that: (1) the disclosure was made by the inventor or a joint inventor; or (2) the subject matter disclosed was obtained directly or indirectly from the inventor or a joint inventor. In other words, the affidavits or declarations are seeking to attribute an activity, a reference, or part of a reference to the inventor(s) to show that the disclosure is not available as prior art under 35 U.S.C. 102(a). Such declarations or affidavits will be similar to affidavits or declarations under 37 CFR 1.132 for application subject to pre-AIA 35 U.S.C. 102(a) or 102(e). See MPEP § 716.10 and In re Katz, 687 F.2d 450, 455, 215 USPQ 14, 18 (CCPA 1982). Affidavits or declarations of attribution for applications subject to pre-AIA 35 U.S.C. 102 remain as affidavits or declarations under 37 CFR 1.132. Thus, the Office will treat affidavits or declarations of attribution for applications subject to the current 35 U.S.C. 102 as affidavits or declarations under 37 CFR 1.130, and affidavits or declarations of attribution for applications subject to pre-AIA 35 U.S.C. 102 as affidavits or declarations under 37 CFR 1.132, regardless of whether the affidavit or declaration is designated as an affidavit or declaration under 37 CFR 1.130, 1.131, or 1.132.

Jump to MPEP Source · 37 CFR 1.130(a)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA PracticeAntedating Reference – Pre-AIA (MPEP 2136.05)
Topic

Antedating Reference – Pre-AIA (MPEP 2136.05)

1 rules
StatutoryInformativeAlways
[mpep-717-01-a-1-cdcec90c721180122befbe2c]
Affidavits of Attribution for Pre-AIA and Current 35 U.S.C. 102
Note:
The Office treats affidavits or declarations of attribution differently based on the type of application, as per 37 CFR 1.130 or 1.132.

In making a submission under 37 CFR 1.130(a), the applicant or patent owner is attempting to show that: (1) the disclosure was made by the inventor or a joint inventor; or (2) the subject matter disclosed was obtained directly or indirectly from the inventor or a joint inventor. In other words, the affidavits or declarations are seeking to attribute an activity, a reference, or part of a reference to the inventor(s) to show that the disclosure is not available as prior art under 35 U.S.C. 102(a). Such declarations or affidavits will be similar to affidavits or declarations under 37 CFR 1.132 for application subject to pre-AIA 35 U.S.C. 102(a) or 102(e). See MPEP § 716.10 and In re Katz, 687 F.2d 450, 455, 215 USPQ 14, 18 (CCPA 1982). Affidavits or declarations of attribution for applications subject to pre-AIA 35 U.S.C. 102 remain as affidavits or declarations under 37 CFR 1.132. Thus, the Office will treat affidavits or declarations of attribution for applications subject to the current 35 U.S.C. 102 as affidavits or declarations under 37 CFR 1.130, and affidavits or declarations of attribution for applications subject to pre-AIA 35 U.S.C. 102 as affidavits or declarations under 37 CFR 1.132, regardless of whether the affidavit or declaration is designated as an affidavit or declaration under 37 CFR 1.130, 1.131, or 1.132.

Jump to MPEP Source · 37 CFR 1.130(a)Antedating Reference – Pre-AIA (MPEP 2136.05)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA Practice
Topic

1.130 Affidavit or Declaration (MPEP 2155)

1 rules
StatutoryProhibitedAlways
[mpep-717-01-a-1-2e4339606c300ce9768f4d25]
Criteria for Effective Declaration Under 37 CFR 1.130(a)
Note:
Office personnel evaluate the effectiveness of a declaration under 37 CFR 1.130(a) based on specific criteria including exceptions to the grace period, sufficiency of facts, formal requirements, and timeliness.
In evaluating whether a declaration under 37 CFR 1.130(a) is effective, Office personnel will consider the following criteria:
  • (A) Whether the disclosure, which was applied in the rejection and is addressed in the affidavit or declaration, is subject to the exceptions of 35 U.S.C. 102(b)(1)(A) or 102(b)(2)(A). The provision of 37 CFR 1.130(a) is not available:
    • (1) If the disclosure was made (e.g., patented, described in a printed publication, or in public use, on sale, or otherwise available to the public) more than one year before the effective filing date of the claimed invention. See MPEP § 2152.01 to determine the effective filing date. For example, if a public disclosure by the inventor or which originated with the inventor is not within the grace period of 35 U.S.C. 102(b)(1), it would qualify as prior art under 35 U.S.C. 102(a)(1) and could not be excepted under 35 U.S.C. 102(b)(1).
    • (2) When the disclosure that is applied in a rejection is
      • (a) a U.S. patent or U.S. patent application publication that
      • (b) claims an invention that is the same or substantially the same as the applicant’s or patent owner’s claimed invention, and
      • (c) the affidavit or declaration contends that an inventor named in the U.S. patent or U.S. patent application publication derived the claimed invention from the inventor or a joint inventor named in the application or patent.
    • See MPEP § 717.01, subsection II., for more information on when declarations or affidavits pursuant to 37 CFR 1.130(a) are not available.
  • (B) Whether the affidavit or declaration shows sufficient facts, in weight and character, to establish that Some factors to consider are the following:
    • (1) the disclosure was made by the inventor or a joint inventor, or
    • (2) the subject matter disclosed was obtained directly or indirectly from the inventor or a joint inventor.
    • (1) Where the authorship of the prior art disclosure includes the inventor or a joint inventor named in the application, an "unequivocal" statement from the inventor or a joint inventor that he/she (or some specific combination of named joint inventors) invented the subject matter of the disclosure, accompanied by a reasonable explanation of the presence of additional authors, may be acceptable in the absence of evidence to the contrary. See In re DeBaun, 687 F.2d 459, 463, 214 USPQ 933, 936 (CCPA 1982).
    • (2) A mere statement from the inventor or a joint inventor, without any accompanying reasonable explanation, may not be sufficient where there is evidence to the contrary, such as a contrary statement from another named author that was filed in another application on behalf of another party. See Ex parte Kroger, 219 USPQ 370 (Bd. App. 1982) (affirming rejection notwithstanding declarations by the alleged actual inventors as to their inventorship in view of a non-applicant author submitting a letter declaring the non-applicant author’s inventorship).
  • (C) Whether the formal requirements of a declaration or affidavit are met. See MPEP § 717.01(c)
  • (D) Whether the affidavit or declaration is timely presented. See MPEP § 717.01(f).
Jump to MPEP Source · 37 CFR 1.130(a)1.130 Affidavit or Declaration (MPEP 2155)Inventor Disclosure Exception – 102(b)(1)(A)One-Year Grace Period Window
Topic

One-Year Grace Period Window

1 rules
StatutoryProhibitedAlways
[mpep-717-01-a-1-873b22c909c688513f0f459b]
Disclosure Made Over a Year Affects Patent Filing
Note:
If the disclosure of an invention was made more than one year before the filing date, it cannot be protected under the grace period exception.

In evaluating whether a declaration under 37 CFR 1.130(a) is effective, Office personnel will consider the following criteria:
(A) Whether the disclosure, which was applied in the rejection and is addressed in the affidavit or declaration, is subject to the exceptions of 35 U.S.C. 102(b)(1)(A) or 102(b)(2)(A). The provision of 37 CFR 1.130(a) is not available (1) If the disclosure was made (e.g., patented, described in a printed publication, or in public use, on sale, or otherwise available to the public) more than one year before the effective filing date of the claimed invention. See MPEP § 2152.01 to determine the effective filing date. For example, if a public disclosure by the inventor or which originated with the inventor is not within the grace period of 35 U.S.C. 102(b)(1), it would qualify as prior art under 35 U.S.C. 102(a)(1) and could not be excepted under 35 U.S.C. 102(b)(1).

Jump to MPEP Source · 37 CFR 1.130(a)One-Year Grace Period WindowOn Sale (MPEP 2152.02(d))Otherwise Available to the Public (MPEP 2152.02(e))
Topic

Inventor Disclosure Exception – 102(b)(1)(A)

1 rules
StatutoryProhibitedAlways
[mpep-717-01-a-1-0f505092ff9b178d05fda7c4]
Inventor Disclosure Cannot Qualify as Prior Art Under Grace Period Exception
Note:
If a public disclosure by the inventor is not within the grace period, it cannot be excepted under 35 U.S.C. 102(b)(1) and would qualify as prior art under 35 U.S.C. 102(a)(1).

In evaluating whether a declaration under 37 CFR 1.130(a) is effective, Office personnel will consider the following criteria:
(A) Whether the disclosure, which was applied in the rejection and is addressed in the affidavit or declaration, is subject to the exceptions of 35 U.S.C. 102(b)(1)(A) or 102(b)(2)(A). The provision of 37 CFR 1.130(a) is not available (1) If the disclosure was made (e.g., patented, described in a printed publication, or in public use, on sale, or otherwise available to the public) more than one year before the effective filing date of the claimed invention. See MPEP § 2152.01 to determine the effective filing date. For example, if a public disclosure by the inventor or which originated with the inventor is not within the grace period of 35 U.S.C. 102(b)(1), it would qualify as prior art under 35 U.S.C. 102(a)(1) and could not be excepted under 35 U.S.C. 102(b)(1).

Jump to MPEP Source · 37 CFR 1.130(a)Inventor Disclosure Exception – 102(b)(1)(A)Grace Period Exception – 102(b) (MPEP 2153)Novelty / Prior Art
Topic

35 U.S.C. 112 – Disclosure Requirements

1 rules
StatutoryInformativeAlways
[mpep-717-01-a-1-2f70f11f429c3d7e2c757dc7]
Disclosure Not Needing Enabling Nature
Note:
An affidavit or declaration does not need to demonstrate that the disclosure was an enabling disclosure under 35 U.S.C. 112(a).

There is no requirement that the affidavit or declaration demonstrate that the disclosure by the inventor, a joint inventor, or another who obtained the subject matter disclosed directly or indirectly from an inventor or a joint inventor was an "enabling" disclosure of the subject matter within the meaning of 35 U.S.C. 112(a). See MPEP § 2155.04.

Jump to MPEP SourceDisclosure Requirements
Topic

Patent Application Content

1 rules
StatutoryInformativeAlways
[mpep-717-01-a-1-9d1afe1d462ab5cbc434aa4a]
Requirement for Determining Disclosure Origin
Note:
The rule requires a case-by-case analysis to determine if the disclosure is by an inventor, joint inventor, or someone who obtained it from them.

The evidence necessary to show that the disclosure is by the inventor or a joint inventor or another who obtained the subject matter disclosed from the inventor or a joint inventor requires case-by-case analysis, depending upon whether it is apparent from the disclosure itself or the patent application specification that the disclosure is an inventor originated disclosure. See MPEP §§ 2155.01 and 2155.03 for more information. This determination is similar to the current process for disqualifying a publication as not being by “others” discussed in MPEP § 2132.01, except that 35 U.S.C. 102(b)(1)(A) requires only that the disclosure originated from an inventor or a joint inventor.

Jump to MPEP SourcePatent Application ContentApplication PublicationNovelty / Prior Art
Topic

Application Publication

1 rules
StatutoryInformativeAlways
[mpep-717-01-a-1-4b5a3ef3cdb48aa6a5d78c77]
Disclosure Originating from Inventor Required for Prior Art
Note:
The rule requires that any prior art disclosure must originate from an inventor or joint inventor to be considered valid.

The evidence necessary to show that the disclosure is by the inventor or a joint inventor or another who obtained the subject matter disclosed from the inventor or a joint inventor requires case-by-case analysis, depending upon whether it is apparent from the disclosure itself or the patent application specification that the disclosure is an inventor originated disclosure. See MPEP §§ 2155.01 and 2155.03 for more information. This determination is similar to the current process for disqualifying a publication as not being by “others” discussed in MPEP § 2132.01, except that 35 U.S.C. 102(b)(1)(A) requires only that the disclosure originated from an inventor or a joint inventor.

Jump to MPEP SourceApplication PublicationNovelty / Prior ArtPatent Application Content

Citations

Primary topicCitation
AIA vs Pre-AIA Practice
Obviousness Under AIA (MPEP 2158)
35 U.S.C. § 100
AIA vs Pre-AIA Practice
Antedating Reference – Pre-AIA (MPEP 2136.05)
Assignee as Applicant Signature
Obviousness Under AIA (MPEP 2158)
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
35 U.S.C. § 102
Antedating Reference – Pre-AIA (MPEP 2136.05)
Assignee as Applicant Signature
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
35 U.S.C. § 102(a)
1.130 Affidavit or Declaration (MPEP 2155)
Inventor Disclosure Exception – 102(b)(1)(A)
One-Year Grace Period Window
35 U.S.C. § 102(a)(1)
1.130 Affidavit or Declaration (MPEP 2155)
Inventor Disclosure Exception – 102(b)(1)(A)
One-Year Grace Period Window
35 U.S.C. § 102(b)(1)
1.130 Affidavit or Declaration (MPEP 2155)
Application Publication
Content of Patent Application Publication
Inventor Disclosure Exception – 102(b)(1)(A)
One-Year Grace Period Window
Patent Application Content
35 U.S.C. § 102(b)(1)(A)
AIA vs Pre-AIA Practice
Obviousness Under AIA (MPEP 2158)
35 U.S.C. § 103
35 U.S.C. 112 – Disclosure Requirements35 U.S.C. § 112(a)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Assignee as Applicant Signature
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
37 CFR § 1.130
1.130 Affidavit or Declaration (MPEP 2155)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Assignee as Applicant Signature
Content of Patent Application Publication
Inventor Disclosure Exception – 102(b)(1)(A)
One-Year Grace Period Window
PTAB Contested Case Procedures
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
37 CFR § 1.130(a)
37 CFR § 1.131(b)
AIA vs Pre-AIA Practice
Antedating Reference – Pre-AIA (MPEP 2136.05)
Assignee as Applicant Signature
Obviousness Under AIA (MPEP 2158)
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
37 CFR § 1.132
Application Publication
Patent Application Content
MPEP § 2132.01
1.130 Affidavit or Declaration (MPEP 2155)
Inventor Disclosure Exception – 102(b)(1)(A)
One-Year Grace Period Window
MPEP § 2152.01
Application Publication
Patent Application Content
MPEP § 2155.01
35 U.S.C. 112 – Disclosure RequirementsMPEP § 2155.04
AIA vs Pre-AIA Practice
Obviousness Under AIA (MPEP 2158)
MPEP § 2159
AIA vs Pre-AIA Practice
Antedating Reference – Pre-AIA (MPEP 2136.05)
Assignee as Applicant Signature
Obviousness Under AIA (MPEP 2158)
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
MPEP § 716.10
1.130 Affidavit or Declaration (MPEP 2155)MPEP § 717.01
1.130 Affidavit or Declaration (MPEP 2155)MPEP § 717.01(c)
1.130 Affidavit or Declaration (MPEP 2155)MPEP § 717.01(f)
1.130 Affidavit or Declaration (MPEP 2155)In re DeBaun, 687 F.2d 459, 463, 214 USPQ 933, 936 (CCPA 1982)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Assignee as Applicant Signature
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
In re Katz, 687 F.2d 450, 455, 215 USPQ 14, 18 (CCPA 1982)

Source Text from USPTO’s MPEP

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BlueIron Last Updated: 2025-12-31