What is the extent of information disclosure required under 37 CFR 1.56(a)?

Source: FAQ (MPEP-Based)BlueIron Update: 2024-09-29

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.

Under 37 CFR 1.56(a), the duty to disclose information extends to “all information known to be material to patentability.” The MPEP clarifies this by stating:

“The duty to disclose all information known to be material to patentability is deemed to be satisfied if all information known to be material to patentability of any claim issued in a patent was cited by the Office or submitted to the Office in the manner prescribed by §§ 1.97(b)-(d) and 1.98.”

This means that applicants and their representatives must disclose all information they are aware of that could affect the patentability of their claims. However, they are not required to conduct additional searches for information beyond what they already know.

Topics: MPEP 2000 - Duty Of Disclosure MPEP 2001.04 - Information Under 37 Cfr 1.56(A) Patent Law Patent Procedure
Tags: But For Materiality, Disclosure Individuals, Disclosure Timing, Inequitable Conduct Elements, Materiality Standard