What information is included in the header of an inter partes reexamination certificate?

The header of an inter partes reexamination certificate contains essential information about the reexamination proceeding. According to MPEP 2688, the header includes:

• The patent number of the original patent
• The name of the patent owner at the time of issuance
• The reexamination control number
• The effective date of the certificate
• The reexamination request filing date
• The filing date of the request for inter partes reexamination

The MPEP states: “The certificate is mailed on its issue date and is published in the Official Gazette as part of the notice of issuance of the certificate.” This header information provides a quick reference to key details of the reexamination process and its outcome.

To learn more:

• inter partes reexamination
• certificate header
• patent information
• reexamination details