MPEP § 151 — Content of the Statements (Annotated Rules)

§151 Content of the Statements

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

This page consolidates and annotates all enforceable requirements under MPEP § 151, 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.

Content of the Statements

This section addresses Content of the Statements. Primary authority: 37 CFR 1.48. Contains: 4 requirements, 1 guidance statement, and 2 other statements.

Key Rules

Topic

Documents Requiring Signature

4 rules
StatutoryInformativeAlways
[mpep-151-d15ce75639cad337912ad8a6]
Definition of Applicant for Inventors and Assignees
Note:
The term 'applicant' is defined to include inventors, joint inventors, assignees, obligated assignees, or any person with a proprietary interest in the matter.

The word "applicant" in both of these statutes is construed by the Office to mean the inventor or joint inventors in person, or an assignee, obligated assignee, or a person who otherwise shows sufficient proprietary interest in the matter. Accordingly, in the ordinary situation, the statements must be signed by the inventor or the joint inventors, or an assignee, obligated assignee, or a person who otherwise shows sufficient proprietary interest in the matter if available. This construction is consistent with the fact that no other person could normally be more knowledgeable of the "full facts concerning the circumstances under which such invention was made," (42 U.S.C. 2457) or, “full facts surrounding the making or conception of the invention or discovery” (42 U.S.C. 2182). If a request under 37 CFR 1.48 for correction of inventorship is granted during pendency of an application in which a property rights statement has been filed, a supplemental statement executed by any added inventor(s) is required and should promptly be filed with Licensing and Review.

Jump to MPEP Source · 37 CFR 1.48Documents Requiring SignatureSignature Requirements
StatutoryRequiredAlways
[mpep-151-0c5ded810d561a93721d745a]
Requirement for Inventor or Assignee to Sign Statements
Note:
The rule requires that statements must be signed by the inventor, joint inventors, assignee, obligated assignee, or any person showing sufficient proprietary interest in the invention.

The word "applicant" in both of these statutes is construed by the Office to mean the inventor or joint inventors in person, or an assignee, obligated assignee, or a person who otherwise shows sufficient proprietary interest in the matter. Accordingly, in the ordinary situation, the statements must be signed by the inventor or the joint inventors, or an assignee, obligated assignee, or a person who otherwise shows sufficient proprietary interest in the matter if available. This construction is consistent with the fact that no other person could normally be more knowledgeable of the "full facts concerning the circumstances under which such invention was made," (42 U.S.C. 2457) or, “full facts surrounding the making or conception of the invention or discovery” (42 U.S.C. 2182). If a request under 37 CFR 1.48 for correction of inventorship is granted during pendency of an application in which a property rights statement has been filed, a supplemental statement executed by any added inventor(s) is required and should promptly be filed with Licensing and Review.

Jump to MPEP Source · 37 CFR 1.48Documents Requiring SignatureSignature Requirements
StatutoryRequiredAlways
[mpep-151-17d338ed185f9ad7b4f2c31a]
Supplemental Statement Required for Added Inventors
Note:
If inventorship is corrected during an application with a property rights statement, any added inventors must promptly file a supplemental statement.

The word "applicant" in both of these statutes is construed by the Office to mean the inventor or joint inventors in person, or an assignee, obligated assignee, or a person who otherwise shows sufficient proprietary interest in the matter. Accordingly, in the ordinary situation, the statements must be signed by the inventor or the joint inventors, or an assignee, obligated assignee, or a person who otherwise shows sufficient proprietary interest in the matter if available. This construction is consistent with the fact that no other person could normally be more knowledgeable of the "full facts concerning the circumstances under which such invention was made," (42 U.S.C. 2457) or, “full facts surrounding the making or conception of the invention or discovery” (42 U.S.C. 2182). If a request under 37 CFR 1.48 for correction of inventorship is granted during pendency of an application in which a property rights statement has been filed, a supplemental statement executed by any added inventor(s) is required and should promptly be filed with Licensing and Review.

Jump to MPEP Source · 37 CFR 1.48Documents Requiring SignatureSignature Requirements
StatutoryRequiredAlways
[mpep-151-64fbab3b00d3275418a10ed3]
All Inventors Must Sign Statement
Note:
The statement must be in the form of an oath or declaration and signed by all inventors. Further information is available in the notice entitled ‘Statements Filed Under Atomic Energy Act and NASA Act’.

Note that the statement must be in the form of an oath or declaration. Further note that the statement must be signed by all the inventors. See also the notice entitled “Statements Filed Under Atomic Energy Act and NASA Act” published in 914 OG 1 (Sept. 4, 1973) for further information.

Jump to MPEP SourceDocuments Requiring SignatureSignature RequirementsInventor Signature Requirements
Topic

Derivation Proceedings (AIA)

2 rules
StatutoryRecommendedAlways
[mpep-151-7fd77a5c8763f6fa47b65f40]
Identify Source of Derived Information
Note:
An applicant must identify the source of any information about work under contracts with the Atomic Energy Commission or National Aeronautics and Space Administration when not having firsthand knowledge.

In instances where an applicant does not have firsthand knowledge whether the invention involved work under any contract, subcontract, or arrangement with or for the benefit of the Atomic Energy Commission, or had any relationship to any work under any contract of the National Aeronautics and Space Administration, and includes in his or her statement information of this nature derived from others, his or her statement should identify the source of his or her information. Alternatively, the statement by the applicant could be accompanied by a supplemental declaration or oath, as to the contractual matters, by the assignee or other person, e.g., an employee thereof, who has the requisite knowledge.

Jump to MPEP SourceDerivation Proceedings (AIA)
StatutoryInformativeAlways
[mpep-151-d37059bd0168a7540ffed9f0]
Supplemental Declaration for Contractual Matters Required
Note:
The applicant must include a supplemental declaration or oath by an employee with requisite knowledge if the information about contractual matters is derived from others.

In instances where an applicant does not have firsthand knowledge whether the invention involved work under any contract, subcontract, or arrangement with or for the benefit of the Atomic Energy Commission, or had any relationship to any work under any contract of the National Aeronautics and Space Administration, and includes in his or her statement information of this nature derived from others, his or her statement should identify the source of his or her information. Alternatively, the statement by the applicant could be accompanied by a supplemental declaration or oath, as to the contractual matters, by the assignee or other person, e.g., an employee thereof, who has the requisite knowledge.

Jump to MPEP SourceDerivation Proceedings (AIA)
Topic

Inventor Signature Requirements

1 rules
StatutoryRequiredAlways
[mpep-151-390d22649c7e926c0f46a2f1]
Inventors Must Sign Statements
Note:
The rule requires all inventors to sign the statements as part of their legal obligations.

Note that the statement must be in the form of an oath or declaration. Further note that the statement must be signed by all the inventors. See also the notice entitled “Statements Filed Under Atomic Energy Act and NASA Act” published in 914 OG 1 (Sept. 4, 1973) for further information.

Jump to MPEP SourceInventor Signature RequirementsDocuments Requiring SignatureSignature Requirements

Citations

Primary topicCitation
Documents Requiring Signature37 CFR § 1.48

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