What types of persons typically file ex parte reexamination requests?

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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. MPEP 2212 provides a non-exhaustive list of persons who are likely to use the ex parte reexamination process under 35 U.S.C. 302: Patentees Licensees Potential licensees Attorneys without identification of their real client in interest Infringers Potential exporters Patent litigants Interference applicants International Trade Commission respondents This diverse list reflects the various stakeholders in the patent system who might have an interest in challenging or clarifying the validity of a patent through the ex parte reexamination process. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Who Can Request Ex Parte Reexamination of a Patent MPEP 2212 Any Person Can File Request for Ex Parte Reexamination Unless Estopped MPEP 2212 Prohibited Patent Owner Estoppel Bars Ex Parte Reexamination Request MPEP 2212 Patent Owner Can Request Ex Parte Reexamination Limited to Prior Art MPEP 2212 Permitted Any Person May Seek Patent Reexamination Under 35 U.S.C. 302 MPEP 2212 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 Certification Required for Ex Parte Reexamination MPEP 2214 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? Are there any restrictions on who can file for ex parte reexamination? Can the USPTO initiate ex parte reexamination on its ow...