William Shaffer is the Managing Partner for the firm's San Diego office. Mr. Shaffer focuses his practice on patent prosecution and counseling, patent portfolio building/management, patent analysis and post-grant patent procedures, including reexamination and reissue proceedings. He has been the lead or co-lead attorney for a dozen reexaminations, including both inter partes and ex parte matters, many of which involved patents in litigation, representing both patent owners and challengers.
Mr. Shaffer has assisted patent litigation efforts in jurisdictions including the Northern District of California, the Eastern District of Texas, the Eastern District of Virginia and the International Trade Commission. He has provided in depth analysis of individual patents and patent portfolios in connection with venture capital investments and corporate acquisitions and advised prominent venture capital backed start-ups. Specific technologies Mr. Shaffer has experience with include, among others, thin film processing, semiconductor manufacturing equipment, photovoltaic systems and films, chip-level packaging, computer generated imagery (CGI) animation, computer architecture, software- and Internet-based technologies and consumer products.
Prior to joining the legal profession, Mr. Shaffer was a software engineer for GTE Government Systems Corporation.
Mr. Shaffer was recognized as a Northern California "Super Lawyer" in the area of Intellectual Property by Super Lawyers magazine in 2016 and the five years immediately preceding. Mr. Shaffer was recommended by Legal 500 US for Patent Prosecution in 2016 and the four years immediately preceding. He was named a 2013, 2014, 2015 and 2016 "IP Star" by Managing Intellectual Property magazine. Mr. Shaffer was recognized as a top patent practitioner in 2013, 2014, 2015 and 2016 by IAM Patent 1000 – The World’s Leading Patent Practitioners. He was named by Legal Media Group in its 2013 Guide to the World's Leading Patent Practitioners. Mr. Shaffer was listed as "Best of the Bar" in 2014 by the San Diego Business Journal.