# 37 CFR § 41.9: Action by owner

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-37-41.9

## Section

- **Citation:** 37 CFR § 41.9
- **Heading:** Action by owner
- **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 41—PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD > Subpart A—General Provisions

## Text

(a) Entire interest. An owner of the entire interest in an application or patent involved in a Board proceeding may act in the proceeding to the exclusion of the inventor (see §§ 3.71 and 3.73 of this title).
(b) Part interest. An owner of a part interest in an application or patent involved in a Board proceeding may petition to act in the proceeding to the exclusion of an inventor or a co-owner. The petition must show the inability or refusal of an inventor or co-owner to prosecute the proceeding or other cause why it is in the interest of justice to permit the owner of a part interest to act in the proceeding. An order granting the petition may set conditions on the actions of the parties during the proceeding.
[69 FR 50003, Aug. 12, 2004, as amended at 77 FR 48826, Aug. 14, 2012]

## Nearby sections

- [37 CFR § 41.1 § 41.1 Policy.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.1.md)
- [37 CFR § 41.2 § 41.2 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.2.md)
- [37 CFR § 41.3 § 41.3 Petitions.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.3.md)
- [37 CFR § 41.4 § 41.4 Timeliness.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.4.md)
- [37 CFR § 41.5 § 41.5 Counsel.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.5.md)
- [37 CFR § 41.6 § 41.6 Public availability of Board records.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.6.md)
- [37 CFR § 41.7 § 41.7 Management of the record.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.7.md)
- [37 CFR § 41.8 § 41.8 Mandatory notices.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.8.md)
- [37 CFR § 41.9 § 41.9 Action by owner.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.9.md)
- [37 CFR § 41.10 § 41.10 Correspondence addresses.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.10.md)
- [37 CFR § 41.11 § 41.11 Ex Parte communications in inter partes proceedings.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.11.md)
- [37 CFR § 41.12 § 41.12 Citation of authority.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.12.md)
- [37 CFR § 41.20 § 41.20 Fees.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.20.md)
- [37 CFR § 41.30 § 41.30 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-37-41.30.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-37-41.9. Check the current official text before relying on it. Not legal advice.