Attorney search

Search by last name

Team members

Lianzhen Cheng

Counsel | Patent Agent

Phone: +86 88369999

Dr. Cheng has twelve years of work experience in the field of intellectual property. She helps multinational corporations protect their intellectual property worldwide, including IP strategy, patent portfolio management, and enforcement matters. She has extensive experience in patent drafting, patent prosecution, reexamination, counseling, invalidation and litigation.

Practice Areas

  • Patent Application in CN
  • Patent Invalidation in China
  • Patent Litigation in China
  • Patent Protection in Other Country / Area outside China

Years with IP Matters

  • 12 years

Representative Clients

  • BMW
  • IBM
  • BOA (Bank of America)


  • Beijing University of Aeronautics and Astronautics, Ph.D. (2007)

Bar Admission

  • Member of the PRC Patent Bar (2012)


  • Mandarin Chinese
  • English


Team Overview

With over 350 legal professionals with a diversified background, Chang Tsi & Partners offers clients deep expertise and professional experience, leading to successful legal solutions. Our attorneys are always praised for their sharp insights into the policy, and their pragmatic commercial awareness. Qualified to practice in other jurisdictions, our attorneys can maximize the profit of clients in different areas.