B.Sc., University of London; Ph.D., Institute of Plant Science Research, England; C.P.E., Nottingham Law School, England; J.D., New York University. Professor Marsh is a partner at Arnold & Porter intellectual property group, He focuses extensively on intellectual property counseling, interferences, inter partes and ex parte matters, Hatch-Waxman issues and patent procurement, including in the biotechnology, business methods, chemical, clothing, computer media, consumer products, pharmaceutical and medical device areas.  Dr. Marsh is also an American Arbitration Association and World Intellectual Property Organization neutral arbitrator and has acted as a court-appointed mediator, arbitrator, and Markman Hearing special master.