Yan Li

Before joined Sunshine in 2013, Ms. Li had worked in another firm for all aspects of litigation and non-litigation work, including medical dispute, business contract, inheritance dispute, and state-owned assets due diligence project. She also worked in a medicine group as the legal counsel.

She is responsible for corporation’s litigation and IP management work, including handling litigation, and all aspects of IP layout and their follow ups. After joined Sunshine and began IP litigation, she specializes in patent invalidation, administrative litigation, and infringement litigation related to medicine, chemistry, and mechanics. She is also involve in trademark administrative litigation, infringement, and unfair competition litigation.

After all these years of experience in the medical field, she gathered a great amount of working and practical experience in these related patent application drafting, and OA response.


  • B.S. in Clinical Medicine at Binzhou Medical University
  • LLM at China University of Political Science and Law

Practice Area

Patent Prosecution and Litigation in the field of Pharmaceutics, Chemistry, Mechanics.


  • The first case of Beijing intellectual property court, "Huaihua Zhenghao vs zhejiang Wei Kang pharmaceutical" patent invalidation case
  • Invention patent administrative lawsuit of Hainan Xiantong pharmaceutical co., LTD
  • Invalidation of utility model patent of Ningbo Fangtai kitchenware co., LTD
  • Invalidation of design patent of Shenzhen Zhenghe industrial co., LTD
  • Invalidation of appearance design patent of Shenzhen Yuchang electronic technology co., LTD
  • Zhongshan Si Rui photographic equipment industry co., LTD. Invention patent rights protection series of cases

        Sunshine Intellectual Property Group

  • Tel: +86-10-82870718 / +86-10-84065599 


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    Address:5F,Tower A, Zhongguancun Intellectual Property Building, No.21, A, Haidian South Road, Haidian District, Beijing, P.R.China, 10080

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