Siegfried J.W. Ruppert, Ph.D., practices in the area of intellectual property law.  Dr. Ruppert focuses his practice on patent prosecution, patent interference, patent litigation, patent infringement analysis and opinion work. Dr. Ruppert assists corporate and institutional clients in all areas of life sciences and biotechnology with securing patent rights in the United States and abroad and managing their patent portfolios.

Before entering the legal field, Dr. Ruppert was a scientist at Genentech, Inc., where he and his team identified and characterized novel proteins of therapeutic interest. He was a postdoctoral Fellow at both the University of California, Berkeley and the Ruprecht-Karls University of Heidelberg, Germany, where he designed, implemented and managed independent research projects focusing on mammalian gene regulation, transcription factors and cloning of several genes. Dr. Ruppert is an inventor of a number of patents and has co-authored nearly 40 scientific articles in peer-reviewed journals. Dr. Ruppert recently published several articles on biosimilars and presented on legal matters impacting the U.S. biotech industry.

Dr. Ruppert is a 2003 graduate of the University of California, Hastings College of the Law, and a graduate of the Ruprecht-Karls University of Heidelberg (Ph.D., Biological Sciences, cum laude; B.S., Biological Sciences). He is fluent in German.