What information is included in an Inter Partes Reexamination Certificate?

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.

An Inter Partes Reexamination Certificate contains specific information about the reexamined patent. MPEP 2690 outlines the following details:

• The title “INTER PARTES REEXAMINATION CERTIFICATE”
• An ordinal number indicating its sequence
• The original patent number followed by a kind code suffix
• The date of issuance
• The title of the invention
• Name of the inventor
• Current classification
• Abstract
• Filing date and number of the reexamination request
• Identification of the patent for which the certificate is issued
• Status of patent claims (confirmed, canceled, disclaimed, not examined)
• Text of new and amended claims
• Any relevant court decisions

The certificate serves as a comprehensive record of the changes made to the patent during the reexamination process.