What types of evidence can be used in a 37 CFR 1.130(a) declaration?

Source: FAQ (MPEP-Based)BlueIron Update: 2024-09-10

This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.

Various types of evidence can be used in a 37 CFR 1.130(a) declaration to establish that a disclosure was made by the inventor or obtained from them. While the MPEP 717.01(a)(1) doesn’t provide an exhaustive list, common types of evidence may include:

  • Emails or correspondence between the inventor and third parties
  • Laboratory notebooks or research records
  • Witness statements
  • Publication drafts or submission records
  • Presentation materials and records of public disclosures
  • Contracts or agreements related to the disclosure

The MPEP emphasizes that evidence is evaluated on a case-by-case basis:

The evidence necessary to show that the disclosure is by the inventor or a joint inventor or the subject matter disclosed was obtained directly or indirectly from the inventor or a joint inventor must be evaluated on a case-by-case basis.

It’s important to provide clear and convincing evidence that links the inventor to the disclosure in question.

Tags: patent application, prior art