Question: Who must sign the power of attorney for applications filed on or after September 16, 2012? Answer: For applications filed on or after September 16, 2012, a power of attorney must be signed by the applicant for patent or the patent owner (for reissue applications, reexamination proceedings and supplemental examination proceedings). An assignee who is not an applicant cannot revoke or appoint power of attorney in a patent application. “Applicant” refers to the inventor or all of the joint inventors or to the person applying for a patent. If a person is applying for a patent, that person (which…
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