Keith A. Barritt, Principal / Fish & Richardson P.C.
Keith A. Barritt is a Principal in the Washington, D.C. office of Fish & Richardson P.C. His practice is focused on all aspects of medical device regulation by the U.S. Food and Drug Administration, including obtaining marketing authorization for medical devices, use of new devices for investigational purposes, and import and export issues. Mr. Barritt has prepared and filed 510(k) pre-market notifications with the FDA for various types of medical devices, resulting in the clearance of the devices for marketing. He has also advised clients on issues involving quality system regulations, device labeling, medical device reporting obligations, recalls, device listing, establishment registration, and import/export regulations.

Mr. Barritt earned a J.D. from the University of Virginia and a B.A., cum laude, from the University of Virginia.

William E. Hunter, Principal / Fish & Richardson P.C.
Bill Hunter is a Principal in the Southern California office of Fish & Richardson P.C. His practice emphasizes patent prosecution and counseling, patent strategy and analysis, development and management of patent portfolios, patent opinions, and due diligence investigations in connection with investments, mergers and acquisitions. Mr. Hunter has significant experience in advising individuals, start-up companies, universities and research institutes, and technology and manufacturing companies, particularly assisting clients with issues involving devices and software in medical diagnosis and treatment.

Mr. Hunter earned a J.D., cum laude, from the University of California, Hastings College of the Law, and a B.S. from the University of California, San Diego.

Terry G. Mahn, Principal / Fish & Richardson P.C.
Terry G. Mahn is Managing Principal of Fish & Richardson’s Washington, D.C. office, and the Regulatory and Government Affairs Practice Group Leader. His practice is primarily before the FCC and FDA with emphasis on complex product authorizations. Mr. Mahn's FCC practice includes all facets of spectrum allocation, wireless technology and licensing, and equipment approvals. He actively participates in domestic and international product standards development, harmonization, and compliance in the areas of radio communications, EMC, electrical, medical, and RF safety. His FDA specialty involves pharmaceutical and medical device approvals with special emphasis on drug exclusivities and patent protection under Hatch-Waxman.

Mr. Mahn earned a J.D. from Catholic University of America, Columbus School of Law, and a B.S. from the University of Michigan.