---
kind: "section"
citation: "37 C.F.R. § 1.601"
title: "37"
number: "1.601"
heading: "Filing of papers in supplemental examination."
url: "https://uscodex.org/cfr/37/1.601"
---

# §1.601. Filing of papers in supplemental examination.

- (a) A request for supplemental examination of a patent must be filed by the owner(s) of the entire right, title, and interest in the patent.
- (b) Any party other than the patent owner (i.e., any third party) is prohibited from filing papers or otherwise participating in any manner in a supplemental examination proceeding.
- (c) A request for supplemental examination of a patent may be filed at any time during the period of enforceability of the patent.

## Notes

### Source

Source: 77 FR 48851, Aug. 14, 2012, unless otherwise noted.

### Authority

Authority: 35 U.S.C. 2(b)(2), unless otherwise noted.

### Source

Source: 24 FR 10332, Dec. 22, 1959, unless otherwise noted.