# 37 CFR § 1.34: Acting in a representative capacity

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-37-1.34

## Section

- **Citation:** 37 CFR § 1.34
- **Heading:** Acting in a representative capacity
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 37—Patents, Trademarks, and Copyrights > CHAPTER I—UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE > SUBCHAPTER A—GENERAL > PART 1—RULES OF PRACTICE IN PATENT CASES > Subpart B—National Processing Provisions > Prosecution of Application and Appointment of Attorney or Agent

## Text

When a patent practitioner acting in a representative capacity appears in person or signs a paper in practice before the United States Patent and Trademark Office in a patent case, his or her personal appearance or signature shall constitute a representation to the United States Patent and Trademark Office that under the provisions of this subchapter and the law, he or she is authorized to represent the particular party on whose behalf he or she acts. In filing such a paper, the patent practitioner must set forth his or her registration number, his or her name and signature. Further proof of authority to act in a representative capacity may be required.
[70 FR 56127, Sept. 26, 2005]

## Nearby sections

- [37 CFR § 1.31 § 1.31 Applicant and patent owner may be represented by one or more patent practitioners or joint inventors.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.31.md)
- [37 CFR § 1.32 § 1.32 Power of attorney.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.32.md)
- [37 CFR § 1.33 § 1.33 Correspondence respecting patent applications, patent reexamination proceedings, and other proceedings.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.33.md)
- [37 CFR § 1.34 § 1.34 Acting in a representative capacity.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.34.md)
- [37 CFR § 1.36 § 1.36 Revocation of power of attorney; withdrawal of patent attorney or agent.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.36.md)
- [37 CFR § 1.41 § 1.41 Inventorship.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.41.md)
- [37 CFR § 1.42 § 1.42 Applicant for patent.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.42.md)
- [37 CFR § 1.43 § 1.43 Application for patent by a legal representative of a deceased or legally incapacitated inventor.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.43.md)
- [37 CFR § 1.45 § 1.45 Application for patent by joint inventors.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.45.md)
- [37 CFR § 1.46 § 1.46 Application for patent by an assignee, obligated assignee, or a person who otherwise shows sufficient proprietary interest in the matter.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.46.md)
- [37 CFR § 1.48 § 1.48 Correction of inventorship pursuant to 35 U.S.C. 116 or correction of the name or order of names in a patent application, other than a reissue application.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.48.md)
- [37 CFR § 1.51 § 1.51 General requisites of an application.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.51.md)
- [37 CFR § 1.52 § 1.52 Language, paper, writing, margins, read-only optical disc specifications.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.52.md)
- [37 CFR § 1.53 § 1.53 Application number, filing date, and completion of application.](https://www.frixlaw.com/law-library/statutes/ecfr-37-1.53.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-37-1.34. Check the current official text before relying on it. Not legal advice.