Theo Angelis is an intellectual property and appellate litigator who appears in trial and appellate courts, in administrative tribunals, and in arbitration proceedings throughout the United States. 

Mr. Angelis’ unique experience—as an intellectual property litigator who co-chaired the firm’s appellate practice and has an active appellate practice—allows him to craft and present especially persuasive and compelling arguments.  He also provides clear and strategic advice to clients facing unsettled or complex legal issues, and he assists them in efficiently solving problems and minimizing risk.

Mr. Angelis has litigated patent and other IP matters before the U.S. District Courts in California, Delaware, Illinois, Louisiana, Minnesota, New York, Oregon, Nevada, New Jersey, Pennsylvania, Texas, and Washington, as well as the Patent Trial and Appeal Board and International Trade Commission.  Mr. Angelis’ appellate practice focuses primarily on the Federal and Ninth Circuits, as well as the D.C. Circuit, where Mr. Angelis served as a law clerk.  Mr. Angelis also regularly handles appeals in state appellate courts. a