Served as Federal Administrative Patent Judge from 2013-2018 at the appointment of the Secretary of Commerce; authored over 400 appellate decisions involving issues of patentability.
Returned to private practice to concentrate on arbitration and mediation of litigation involving patent issues.
Before appointment as a judge, practiced law in San Francisco for almost 50 years, focusing on all phases of patent law, including prosecution, licensing, litigation, validity and infringement studies, and counseling.
Litigated numerous cases in the federal district courts and was engaged as an expert witness on patent law in over 150 federal court litigations, as well as serving as an arbitrator, mediator, and special master.
