37 C.F.R. § 42.55
A petitioner filing confidential information with a petition may, concurrent with the filing of the petition, file a motion to seal with a proposed protective order as to the confidential information. The institution of the requested trial will constitute a grant of the motion to seal unless otherwise ordered by the Board.
(b) Protective orders other than default protective order. Where a motion to seal requests entry of a protective order other than the default protective order, the petitioner must file, but need not serve, the confidential information under seal. The patent owner may only access the sealed confidential information prior to the institution of the trial by: