Can an attorney or agent not of record sign amendments to a patent application?

Yes, a registered attorney or agent acting in a representative capacity can sign amendments to a patent application, even if they do not have a power of attorney in the application. This is explicitly stated in MPEP § 714.01(c):

A registered attorney or agent acting in a representative capacity under 37 CFR 1.34, may sign amendments even though he or she does not have a power of attorney in the application.

This provision allows for flexibility in the prosecution process, enabling registered practitioners to assist with specific tasks without requiring a formal power of attorney for the entire application.

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Tags: patent amendments, power of attorney, representative capacity