Who can represent a requester in an ex parte reexamination?

A requester in an ex parte reexamination can be represented by an attorney or agent who must be a registered patent practitioner. According to MPEP 2213, “an attorney or agent representing a requester must be a registered patent practitioner.” The representative can act under either:

• A power of attorney from the client (requester)
• In a representative capacity under 37 CFR 1.34

To act in a representative capacity, the attorney or agent must provide their registration number, name, and signature.

To learn more:

• ex parte reexamination
• patent practitioner
• power of attorney
• representative capacity