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Reexamination Proceeding - uspto 2026

The document is a form (PTO/SB/123B) used by third party requesters to change their correspondence address during a reexamination proceeding with the U.S. Patent and Trademark Office. It outlines the necessary information required for the address change, including control numbers, inventor details, and contact information. The form emphasizes that only parties of record can request an address change and provides instructions for submission and privacy considerations.

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Click ‘Get Form’ to open the Reexamination Proceeding form in the editor.
Begin by entering the Control Number(s) and Filing Date(s) at the top of the form. This information is crucial for identifying your reexamination request.
Fill in the First Named Inventor, Art Unit, and Examiner Name fields accurately to ensure proper processing of your request.
In the address section, choose either option A or B to provide the new correspondence address for the third-party requester. Ensure all details are complete, including City, State, Zip, and Country.
Indicate whether you are an Attorney or agent of record or acting pro se by checking the appropriate box. If applicable, include your Registration Number.
Sign and date the form at the bottom. Make sure your name is typed or printed clearly for verification purposes.

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What is the difference between reissue and reexamination patent?

Reissue allows patent owners to correct errors in U.S. patents. Reexamination allows anyone to test the validity of a U.S. patent. Neither procedure affects the original patent until either a reissue patent is granted or a reexamination certificate is issued.

Can you file a continuation on a reissue?

Reissue Applications and Continuation Applications Further, reissue continuations can be filed ad seriatim, each claiming priority back to the reissue application filed within the two-year broadening reissue window.

What is the purpose of reissue application?

A reissue application is filed to correct an error in the patent, where, as a result of the error, the patent is deemed wholly or partly inoperative or invalid.