Requirement To Identify All Real Parties in Interest to a Third Party Request for an Ex Parte Reexamination
The United States Patent and Trademark Office (USPTO or Office) is proposing to amend the rules of practice to require a third party request for ex parte reexamination to include a statement by the third party requester identifying all real parties in interest to the ex parte reexamination request. This statement would be kept confidential upon request. This proposed requirement would provide the Office with a mechanism to evaluate statutory estoppel provisions. It would also enhance the Office's ability to respond to false certifications, misrepresentations, and fraud.
What this item does
The short version, using the agency's own summary text.
The United States Patent and Trademark Office (USPTO or Office) is proposing to amend the rules of practice to require a third party request for ex parte reexamination to include a statement by the third party requester identifying all real parties in interest to the ex parte reexamination request. This statement would be kept confidential upon request. This proposed requirement would provide the Office with a mechanism to evaluate statutory estoppel provisions. It would also enhance the Office's ability to respond to false certifications, misrepresentations, and fraud.
Notice of proposed rulemaking.
Important dates
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Published
July 22, 2026
Comment deadline
August 21, 2026
Federal rulebook sections mentioned
These are the parts of the Code of Federal Regulations cited in the filing.