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DOC/PTO RIN: 0651-AD94 Publication ID: 2026 
Title: ●Requirement to Identify All Real Parties in Interest to an Ex Parte Reexamination Request 
Abstract:

The United States Patent and Trademark Office (USPTO or Office) is proposing to amend the rules of practice to require a request for ex parte reexamination to include a statement by a third party requester identifying all real parties in interest to the ex parte reexamination request. Upon request, this statement would be kept confidential. This proposed requirement would provide the Office with a mechanism to effectively and efficiently evaluate statutory estoppel provisions and enhance the Office’s ability to respond to false certifications, misrepresentations, and fraud.

 
Agency: Department of Commerce(DOC)  Priority: Other Significant 
RIN Status: First time published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
EO 14192 Designation: Not subject to, not significant 
CFR Citation: 37 CFR 1   
Legal Authority: 35 U.S.C. 2(b)(2)   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  07/00/2026 
NPRM Comment Period End  08/00/2026 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Jeffrey West
Senior Legal Advisor
Department of Commerce
Patent and Trademark Office
P. O. Box 1450,
Alexandria, VA 22313-1450
Phone:571 272-2226
Email: jeffrey.west@uspto.gov