Published on: 02/06/2026 11:31 AM
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USPTO updating the certification regarding the filing of anonymous requests for ex parte reexamination directed to previously-challenged patents
The USPTO receives ex parte reexamination requests directed to patent claims that have also been challenged in inter partes or post-grant review (IPR or PGR) proceedings. If at least one claim of the patent for which ex parte reexamination is being requested was previously challenged in an IPR and/or PGR proceeding that resulted in any final written decision(s) for that claim, a party submitting an anonymous reexamination request should provide an affirmative statement in the request that the real party in interest to the request is not the petitioner of the prior IPR and/or PGR proceeding(s), or the real party in interest or privy of the petitioner.
You can find more information in the Official Gazette Notice available on the USPTO’s Patent Related Notices webpage.
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