Intellectual Property


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
  • Co-author with M. Wang, Y. Zhang, and C.-J. Li, "2,4-Diaryltetrahydropyran Formation by the Prins Cyclization and Its Application towards the Synthesis of Epicalyxin F and Calyxin I," 12 SYNLETT 1912-1916, 2005
  • Co-author with M. Wang and C.-J. Li, "Ruthenium catalyzed tandem olefin-migration/aldol and Mannich-type reactions in ionic liquid," 214 Journal of Molecular Catalysis A: Chemical 147-154, 2004
  • Co-author with M. Wang and C.-J. Li, "Aldol- and Mannich-type reactions via in situ olefin migration in ionic liquid," 5 Organic Letters 657-660, 2003
  • Co-author with M. Wang and C.-J. Li, "Ruthenium-catalyzed tandem olefin migration/aldol and Mannich-type reactions in water and protic solvents," European Journal of Organic Chemistry 998-1003, 2003
  • Co-author with J. T. Mague and C.-J. Li, "Diastereoselective synthesis of polysubstituted tetrahydropyrans and thiacyclohexanes via indium trichloride mediated cyclizations," 66 Journal of Organic Chemistry 739-747, 2001
  • Co-author with C.-J. Li, "Diastereoselective synthesis of multi-substituted thiacyclohexanes via cation-olefine cyclization," 41 Tetrahedron Letters 1321-1325, 2000
  • State Bar of California
  • U.S. Patent and Trademark Office

Contact Information

12235 El Camino Real
San Diego, CA 92130
Phone | 858-350-2339

Email | Frank Yangfyang@wsgr.com

Areas of Expertise

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