37 CFR §41.8

1. (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. (1)Its real party-in-interest, and
   2. (2)Each judicial or administrative proceeding that could affect, or be affected by, the Board proceeding.
2. (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.