37 CFR § 2.74 - Form and signature of amendment.
(a) Form of Amendment. Amendments should be set forth clearly and completely. Applicant should either set forth the entire wording, including the proposed changes, or, if it would be more efficient, indicate which words should be added and which words should be deleted. The examining attorney may require the applicant to rewrite the entire amendment, if necessary for clarification of the record.
(b) Signature. A request for amendment of an application must be signed by the applicant, someone with legal authority to bind the applicant (e.g., a corporate officer or general partner of a partnership), or a practitioner qualified to practice under § 11.14 of this chapter, in accordance with the requirements of § 2.193(e)(2). If the amendment requires verification, see § 2.2(n).