Can a patent owner designate separate addresses for different reexamination proceedings?

Yes, a patent owner can designate separate addresses for different reexamination proceedings on the same patent. MPEP 2222 explicitly states:

“A patent owner may designate a separate correspondence address for each reexamination proceeding for which a request is filed.”

This allows patent owners to manage multiple reexamination proceedings more efficiently, especially if different legal representatives are handling each case. To designate separate addresses:

• File a clear request for each specific reexamination proceeding
• Provide the desired correspondence address for that particular proceeding
• Ensure the request is properly signed and submitted to the USPTO

To learn more:

• patent owner address
• multiple reexaminations
• correspondence management