UCB, Inc. v. Watson Laboratories Inc., No. 18-1397 (Fed. Cir. 2019)Annotate this Case
UCB’s 434 patent, entitled “Transdermal therapeutic system which contains a d2 agonist and which is provided for treating Parkinsonism, and a method for the production thereof,” claims a polymorph of rotigotine. UCB’s 414 patent is entitled “Polymorphic form of rotigotine and process for production.” UCB has been selling the FDA-approved product, Neupro, since 2007. The district court concluded that Actavis’s generic products infringed the patent under the doctrine of equivalents and upheld the 434 patent's validity over obviousness and anticipation challenges. The court invalidated the 414 patent under 35 U.S.C. 102(a) as known and used by others in the U.S. before the date of invention. The Federal Circuit affirmed. There is not enough evidence to conclude that UCB surrendered polyisobutylene as a possible equivalent; UCB’s claiming of acrylates and silicates does not bar treating polyisobutylenes as an equivalent for infringement purposes and vitiation does not bar application of the doctrine of equivalents here. Actavis offers no examples of prior art that would be ensnared by the addition of polyisobutylene to the claim, in contrast to the claim as is. The court upheld fact findings as to polyisobutylene’s characteristics as compared to silicates and acrylates and as to what a skilled artisan would have known about the interchangeability of polyisobutylene-based adhesives and silicone-based adhesives and the conclusion that the accused products infringe the claims under the doctrine of equivalents.