What is an Ex Parte Reexamination Certificate?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-30 10 Rules 5 Related FAQs 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 Ex Parte Reexamination Certificate is a document issued at the conclusion of an ex parte reexamination proceeding, except in specific cases of merger with reissue applications or inter partes reexamination proceedings. The MPEP states: An ex parte reexamination certificate is issued at the close of each ex parte reexamination proceeding in which reexamination has been ordered under 37 CFR 1.525, except for the following two cases: Merger with a reissue application Merger with an inter partes reexamination proceeding The certificate serves as an official record of the changes made to the patent as a result of the reexamination process. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Format of Ex Parte Reexamination Certificate MPEP 2290 Ex Parte Reexamination Certificate Issuance Exceptions MPEP 2290 Ex Parte Reexamination Merges with Inter Partes MPEP 2290 Certificate for Ex Parte Reexamination Ordered Under 35 U.S.C. 257 MPEP 2290 Format for Ex Parte Reexamination Certificate MPEP 2290 Ex Parte Reexamination Certificate Ordinal Continuation MPEP 2290 Ex Parte Reexamination Certificates Ordered Under 35 U.S.C. 257 Are Numbered Separately MPEP 2290 Ex Parte Reexamination Certificate Ordinal Number MPEP 2290 Permitted Date of Ex Parte Reexamination Certificate Required MPEP 2290 Certificate States Ex Parte Reexamination Under 35 U.S.C. 257 MPEP 2290 Other Related FAQs 5 FAQs Collapse How are canceled claims presented in an ex parte reexamination certificate? What is the difference between reexaminations ordered under 35 U.S.C. 304 and 35 U.S.C. 257? What is the significance of the effective date on an ex parte reexamination certificate? How are new and amended ...