Allen Sokal practices patent litigation, with a particular concentration in appellate practice in the United States Court of Appeals for the Federal Circuit. Although Allen’s district court litigation has focused on the pharmaceutical and chemical fields, throughout his career Allen has handled appellate cases in an array of technologies. He has briefed and argued more than 50 cases at the Federal Circuit, the United States Court of Customs and Patent Appeals, and other regional circuits, especially the Federal Circuit. He has also been retained as a patent law expert witness in infringement suits.
Allen has lectured extensively throughout the world on patent law, licensing, and legal ethics issues for bar organizations and clients, as well as on chemical patent practice for the Patent Resources Group and C5.