Searchable Manual of Patent Examining Procedure (MPEP)

Ninth Edition, Revision 07.2022 (Feb. 2023)

The Searchable MPEP. This tool is a game-changer for patent practitioners and patent bar exam students. With our Searchable MPEP, you can easily navigate through topics like 2106, subject matter eligibility, 2100, terminal disclaimer, inventorship, appeal brief, effective filing date, or broadest reasonable interpretation.

Please read the search tips to efficiently use this tool.

Secrecy, Access, National Security, and Foreign Filing

Types and Status of Application; Benefit and Priority Claims

Ownership and Assignment

Representative of Applicant or Owner

Receipt and Handling of Mail and Papers

Parts, Form, and Content of Application

Examination of Applications

Restriction in Applications Filed Under 35 U.S.C. 111; Double Patenting

Prior Art, Classification, and Search

Matters Decided by Various U.S. Patent and Trademark Office Officials

Statutory Invention Registration (SIR); Pre-Grant Publication (PGPub) and Preissuance Submissions


Allowance and Issue

Correction of Patents

Design Patents

Plant Patents


Patent Cooperation Treaty


Duty of Disclosure


Citation of Prior Art and Ex Parte Reexamination of Patents

Interference and Derivation Proceedings