In Momenta Pharmaceuticals, Inc. v. Bristol-Myers Squibb Co., No. 17-1694 (Fed. Cir. argued Dec. 5, 2017), BMS challenges Momenta’s standing to appeal a PTAB decision upholding the validity of BMS’s patent relating to a formulation of Orencia® (abatacept) in an IPR brought by Momenta before having filed a biosimilar marketing application. The Federal Circuit is expected to decide whether a petitioner must have filed a marketing application in order to have Article III standing to appeal from an unfavorable PTAB decision. As months have passed without a decision, Momenta and BMS have both used the time to further press their case.
Allergan’s attempt to shield its Restasis patents from inter partes review by assigning the patents to the Saint Regis Mohawk Tribe was rejected last week by a unanimous Federal Circuit panel. The Federal Circuit affirmed the PTAB’s February 2018 decision holding that tribal sovereign immunity does not bar IPRs.
Generics and biosimilar makers have increasingly used inter partes reviews, proceedings made possible by the America Invents Act, to challenge patents protecting innovator small-molecule drugs and biologic medicines. Senator Orrin Hatch, co-author of the Hatch-Waxman Act, has introduced an amendment that would require these manufacturers either to take advantage of the abbreviated regulatory approval pathways provided by the Hatch-Waxman Act and BPCIA and challenge innovator patents in district court or to challenge innovator patents in IPRs before the PTAB, but not both. Senator Hatch explains that while he strongly supports IPRs and the America Invents Act and that IPRs are of particular importance to the tech community to fight “patent trolls,” they are also “producing unintended consequences in the Hatch-Waxman context” and “threaten to upend the careful Hatch-Waxman balance by enabling two separate paths to attack a brand patent.” If enacted, generics and biosimilar makers that choose to take advantage of the abbreviated regulatory process will challenge innovator patents in court rather than in IPRs before the PTAB.