The Landmark Festo Case at the Supreme Court of the United States
Arthur Neustadt litigated the Festo v. SMC case as lead counsel. The 20-year long landmark patent infringement dispute between SMC and Festo included two Supreme Court and five Federal Circuit decisions, two of which were en banc. The Supreme Court and the Federal Circuit Court’s rulings in the Festo cases changed the parameters courts have used to determine the application of doctrine of equivalents and prosecution history estoppel in a patent infringement litigation. Art Neustadt argued again before the Supreme Court in Medtronic v. Boston Scientific.