Susan Alpert Siegel, Ph.D.

Senior Patent Agent

Portland Office



Susan is a senior patent agent in the firm’s Biotechnology and Life Sciences group, where she prepares and prosecutes U.S., foreign, and international patent applications. Over her career, she has written and successfully prosecuted hundreds of patent applications related to monoclonal antibodies, stem cells, genetic recombination methods, diagnostic assays, vaccines, anti-viral agents, immunotherapeutic treatment methods, viral vectors, pharmaceuticals, medical devices, cancer treatment, nutraceuticals and tissue culture methods. Her range of experience includes the management of Oppositions filed by international third parties, including patents on high value pharmaceuticals and treatment methods.

Susan earned her Ph.D. in molecular genetics, and completed post-doctoral fellowships in cancer biology at the University of California, San Francisco, and immunology at Stanford University. She then conducted academic research in the field of transplant rejection. Following her academic career, but prior to joining Klarquist, she was employed as a patent agent at a large intellectual property firm.

Susan’s depth of knowledge and broad technical aptitude enable her to deliver exceptional service to her clients. She is active in the bioscience community, and has participated as a panelist and presenter at a number of national conferences over the course of her career. She has been a guest lecturer at the National Institutes of Health and the Centers for Disease Control and Prevention, and a variety of research institutions and universities.

Susan joined the firm as a patent agent in 1999.

Practice Areas
Professional Experience
Presentations & Publications
Representative Patents