Yifang Zhao



Education and Clerkships

J.D., Washington University in St. Louis School of Law, 2014

B.A., Washington University in St. Louis, 2009


California, 2015


Chinese (Mandarin)



Yifang Zhao is an associate in the Intellectual Property Litigation Practice Group in the Washington, D.C. office of Haynes and Boone. In addition to engaging in various issues in patent infringement, trade secret misappropriation, and USPTO proceedings, her practice focuses on intellectual property issues related to pharmaceutical development and commercialization, from pre-suit analysis to litigation under the Hatch-Waxman Act.

Yifang has also managed patent portfolios for biotech companies, drafted patent applications and response to PTO communications, and analyzed validity and infringement issues relating to utility and design patents and trademarks.

Prior to law school, Yifang had significant experience in the field of cardiovascular extracellular protein research, and worked as a research scientist for a multinational agrochemical biotechnology corporation. She also volunteered in Tibet, worked, and studied in Asia and Europe.

Selected Publications and Speeches

  • "The IP Beacon," co-author, Haynes and Boone, LLP Newsletter, June 13, 2017.
  • "The Biologics Tango: Reading Tea Leaves on the Patent Dance and Pre-Marketing Notice Requirements," co-author, Lexology, April 27, 2017.

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