Dr. Xiaofan Yang

Wilson Sonsini Goodrich & Rosati PC

Dr. Xiaofan (Frank) Yang is an associate in the San Diego office of Wilson Sonsini Goodrich & Rosati, where his practice is focused on intellectual property strategic counseling, patent prosecution, and due diligence. His intellectual property counseling work includes competitive analyses, patentability analyses, freedom-to-operate analyses, and non-infringement and validity analyses.

Frank has drafted and prosecuted patent applications in the U.S. and other countries and territories, including Europe, China, Japan, Brazil, Russia/Eurasia, Canada, India, Mexico, South Korea, and Australia, building up patent estates for his clients with his extensive knowledge and experience in the patent laws of multiple jurisdictions.

He has completed IP due diligence for license agreements, structured financings, mergers and acquisitions, and IPOs. He also has experience drafting and negotiating S-1 registration statements, underwriting agreements, 10-K, and 10-Q statements. Frank represents a wide range of companies, including biotech, pharmaceutical, medical device, and medical diagnostic companies.

Before joining Wilson Sonsini Goodrich & Rosati, Frank worked as a patent agent/attorney for more than five years at an IP boutique firm in Chicago, where he gained wide-ranging and in-depth experience and expertise in patent prosecution and counseling in chemical formulation, medical device, nanotechnology, and green technology.

Prior to attending law school, Frank worked as a medicinal chemist for Solvay Organics GmbH and Bayer Pharmaceuticals for four years. Frank is a co-awardee of the 2001 Presidential Green Chemistry Challenge Award (academic) for his work and contributions to the development of environmentally friendly chemical processes. He is fluent in Chinese (native speaker).


  • J.D., Chicago-Kent College of Law, 2011
  • Ph.D., Organic Chemistry, Tulane University, 2004
  • B.S., Polymer Chemistry, Nanjing University, China, 1997


  • State Bar of California
  • U.S. Patent and Trademark Office


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What types of cases Attorney Dr. Xiaofan Yang & Wilson Sonsini Goodrich & Rosati PC can handle?
Wilson Sonsini Goodrich & Rosati PC can handle cases related to laws concerning Mergers & Acquisitions, Intellectual Property. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Wilson Sonsini Goodrich & Rosati PC located?
Wilson Sonsini Goodrich & Rosati PC is located at 12235 El Camino Real, San Diego, CA 92130, USA. You can reach out to Wilson Sonsini Goodrich & Rosati PC using their phone line 858-350-2339. You can also check their website wsgr.com or email them at [email protected].
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Wilson Sonsini Goodrich & Rosati PC
12235 El Camino Real, San Diego, CA 92130, USA
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