Long An Law Firm is noted for its specialism in IP litigation, where it covers patent invalidation and infringement, trade secret infringement, trade mark disputes and copyright infringement cases. The sizeable team is led from Beijing by IP experts Cindy Xianzhi Quan and Jianjun Fu and has a wealth of experience handling IP cases across different countries such as Japan and Germany.

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Key clients

  • Puma
  • Omron Healthcare (Japan)
  • Brother Industries (Japan)
  • Suzuki Motor Corporation
  • Casio
  • Fujitsu
  • Midea Group
  • Tencent Technology (Shenzhen)
  • Beijing Chehejia Information Technology
  • Beijing SouFun Science&Technology Development
  • Nitori Holdings
  • Uniwersytet Warszawski
  • Far-eastern Shipping Company
  • Empyrean Medical Systems

Work highlights

  • Represented AuthenMetric in a patent invalidation administrative litigation.

Practice head

The lawyer(s) leading their teams.

Cindy Xianzhi Quan, Jianjun Fu