Our People

Daifei Zhang


Phone: (323) 934-2300 | Fax: (323) 934-0202

Daifei Zhang is an attorney in the Los Angeles office of Ladas & Parry. Daifei’s primary practice focuses on patent prosecution and counseling.  He has prepared and prosecuted U.S. and foreign patent applications across a broad range of fields, including chemicals, pharmaceuticals, medical devices, business methods, semiconductor devices, optics, software systems, and other electrical and mechanical systems. Prior to joining Ladas & Parry LLP, Daifei worked at a semiconductor company in Silicon Valley where he focused on patent prosecution and assisted in licensing matters and portfolio management. Before his legal education, he worked as a Patent Examiner at the State Intellectual Property Office of the PRC (SIPO), where he searched and examined patent applications relating to chemicals, pharmaceuticals and agricultural chemistry. When not practicing law, Daifei enjoys photography, hiking, skiing, basketball, ping-pong, badminton, and tennis.


East China University of Science & Technology, Shanghai, China (B.E., 2002)
Santa Clara University School of Law (J.D., 2010)

Practice Areas
  • Patents – Chemicals, Pharmaceuticals, Medical Devices, Business Methods, Semiconductor Devices, Optics, Software Systems
  • Transactions
  • U.S. Litigation
  • Designs
  • Trademarks

U.S. Patent and Trademark Office – Limited Recognition

Key Industries
  • Medical Devices
  • Semiconductor
  • Chemicals
Associations & Organizations

California State Bar

Mandarin, Japanese