Mark focuses his practice on representing domestic and foreign high-technology and medical device clients in patent infringement and related litigation, as well as opinions, licensing and transactions. Mark has experience with all phases of patent infringement litigation, including bench and jury trials in district courts and several appeals to the Federal Circuit. He also has experience with contentious proceedings in the patent office, including inter partes review and inter partes and ex parte reexamination proceedings. He has also coordinated and supported foreign patent litigation and related patent office proceedings, including trials and appeals, working closely with patent litigation counsel in Canada, the United Kingdom, the Netherlands, Germany, France and Italy.

Over the course of his career, Mark has represented many clients, including Airbus, Bosch, Boston Scientific, Medinol, Olympus, Sony and Toyota, as well as many smaller technology companies.