William J. Marsden, Jr. is the founder and Managing Principal in Fish & Richardson P.C.'s Delaware office. He also serves on the firm's nationwide Management Committee. His practice is focused on patent litigation in the Delaware District Court and other federal district courts around the country. He has participated in over 30 patent trials, including more than 20 jury trials. His cases have covered a wide range of technical arts, from pharmaceuticals and medical devices to integrated circuit design and software. In addition to patent litigation, his practice includes high profile corporate and commercial disputes in federal and state courts, including Delaware's highly regarded Court of Chancery. He has argued appeals in the Delaware Supreme Court, the Third Circuit Court of Appeals, and the Federal Circuit Court of Appeals.