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…

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What happens if a patent owner doesn’t provide a correspondence address for reexamination?

If a patent owner fails to provide a correspondence address for reexamination, the USPTO will take the following steps: Use the correspondence address of record in the patent file If no address is available, attempt to contact the patent owner at the last known address MPEP 2222 states: “If no correspondence address is otherwise specified,…

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