37 CFR §42.8

1. (a)Each notice listed in paragraph (b) of this section must be filed with the Board:
   1. (1)By the petitioner, as part of the petition;
   2. (2)By the patent owner, or applicant in the case of derivation, within 21 days of service of the petition; or
   3. (3)By either party, within 21 days of a change of the information listed in paragraph (b) of this section stated in an earlier paper.
2. (b)Each of the following notices must be filed:
   1. (1)Real party-in-interest. Identify each real party-in-interest for the party.
   2. (2)Related matters. Identify any other judicial or administrative matter that would affect, or be affected by, a decision in the proceeding.
   3. (3)Lead and back-up counsel. If the party is represented by counsel, then counsel must be identified.
   4. (4)Service information. Identify (if applicable):
      1. (i)An electronic mail address;
      2. (ii)A postal mailing address;
      3. (iii)A hand-delivery address, if different than the postal mailing address;
      4. (iv)A telephone number; and
      5. (v)A facsimile number.