Ken Sonnenfeld

Kenneth Sonnenfeld is a licensed patent attorney with nearly 30 years of experience as intellectual property counsel to biotechnology and pharmaceutical industry clients ranging from domestic startups to multinational corporations.

Ken’s background includes a doctorate in pharmacology, which helps him understand and advise effectively on the complex technical issues that arise in biotech patent matters. Prior to entering the legal profession, he conducted cancer therapy research in academic medicine on neuronal development and cancer. Ken counsels clients on a range of inter-party issues, including due diligence, litigation, foreign oppositions, and licensing. He supervises complex, strategic patent prosecution before the U.S. Patent and