Are there any restrictions on who can file for ex parte reexamination?

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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. Yes, there is one specific restriction mentioned in MPEP 2212 : “ The only ‘person’ who is barred from filing a request for ex parte reexamination of a patent under 35 U.S.C. 302 is one who is barred from doing so by the estoppel provisions of AIA 35 U.S.C. 315(e)(1) or 35 U.S.C. 325(e)(1) based on inter partes review and post grant review, respectively, once the estoppel attaches. “ This means that if a person has been involved in certain types of patent review proceedings (inter partes review or post grant review) and is subject to estoppel as a result, they may be barred from filing an ex parte reexamination request. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Patent Owner Estoppel Bars Ex Parte Reexamination Request MPEP 2212 Any Person Can File Request for Ex Parte Reexamination Unless Estopped MPEP 2212 Prohibited Who Can Request Ex Parte Reexamination of a Patent MPEP 2212 Any Person May Seek Patent Reexamination Under 35 U.S.C. 302 MPEP 2212 Patent Owner Can Request Ex Parte Reexamination Limited to Prior Art MPEP 2212 Permitted Requestor’s Name Not Kept Confidential During Ex Parte Reexamination MPEP 2212 Corporations and Governmental Entities Can File for Ex Parte Reexamination MPEP 2212 Patent Owner Can File Reissue Application for Broader Examination MPEP 2212 Permitted Request for Ex Parte Reexamination Allowed at Any Time During Patent Enforceability MPEP 2212 Prohibited Inter Partes Review, Post Grant Review, and Covered Business Method Review Discussed MPEP 1400.01 Other Related FAQs 5 FAQs Collapse Is the identity of the person filing an ex parte reexamination request confidential? Can a patent owner request ex parte reexamination? What type...