37 CFR § 41.8 - Mandatory notices.

---
identifier: "/us/cfr/t37/s41.8"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "37 CFR § 41.8 - Mandatory notices."
title_number: 37
title_name: "Patents, Trademarks, and Copyrights"
section_number: "41.8"
section_name: "Mandatory notices."
chapter_name: "UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "41"
part_name: "PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "35 U.S.C. 2(b)(2), 3(a)(2)(A), 21, 23, 32, 41, 134, 135, and Public Law 112-29."
regulatory_source: "69 FR 50003, Aug. 12, 2004, unless otherwise noted."
cfr_part: "41"
---


# 41.8 Mandatory notices.

(a) In an appeal brief (§§ 41.37, 41.67, or 41.68) or at the initiation of a contested case (§ 41.101), and within 20 days of any change during the proceeding, a party must identify:

(1) Its real party-in-interest, and

(2) Each judicial or administrative proceeding that could affect, or be affected by, the Board proceeding.

(b) For contested cases, a party seeking judicial review of a Board proceeding must file a notice with the Board of the judicial review within 20 days of the filing of the complaint or the notice of appeal. The notice to the Board must include a copy of the complaint or notice of appeal. See also §§ 1.301 to 1.304 of this title.