However, the Board also expressed its agreement “with Patent Owner that Petitioner’s service of the Petition and supporting documents to [the law firm that was Patent Owner’s previous correspondence address] failed to comply with 37 C.F.R. § 42.105(a)” and noted that “[t]he correspondence address of record for a patent can be discovered simply by entering the number of the patent into the USPTO’s web-based Patent Application Information Retrieval (PAIR) portal.” The Board further stated that “[r]elying on the notice of service attached to an earlier petition filed by another party in lieu of consulting the Patent Office database to determine the correspondence address of record is not a good faith attempt to comply with Rule 42.105(a).” As explained by the Board, however: