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Jason Yuan

Patent Agent

Phone: +86 10 88369999

Jason Yuan has been a patent attorney for more than 10 years, and has successfully represented many famous corporations, especially bio-companies, in their patent prosecution. He has handled hundreds of patent filings and prosecuting cases covering various technical fields, particularly in the fields of biology, pharmaceutical chemistry, agricultural chemistry, fermentation engineering and agrochemicals, among others. He also represents clients in comprehensive IP-related fields, including patent application drafting, office action reply, re-examination, participate in invalidation and administrative litigation, retrieval and patent infringement cases. In addition, He has also drafted many patent applications for domestic clients and handled the prosecutions in China as well as abroad.

Pratice Areas

  • Specialized in native and international patent applications; patent prosecution including reexamination, patent invalidation; administrative litigation; FTO; patent consultation; etc.

Technical Fields

  • Biology, Chemistry, and pharmaceuticals

Years with IP Matters

  • 13  years

Professional Experiences

  • Patent Attorney, Chang Tsi & Partners, Beijing, China
  • Patent Attorney, CCPIT Patent and Trademark Law Office
  • Patent Agent, Lung Tin Intellectual Property Agent Ltd

Representative Clients

  • Johnson & Johnson, Pfizer, Novo Nordisk, Merck, Syngenta, Pepsi


  • Master of Science in Biology, Chinese Academy of Sciences (2007)
  • Bachelor of Biology, Shandong University (2000)

Bar Admission

  • Chinese Patent Bar 2010


  • 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.