Technical field

• Polymer Materials
• Organic Chemistry
• Inorganic Chemistry
• LifeScience
• Pharmaceutical
• Medical Device

Years with IP Matters

• 2012 until now

Professional Experiences

• Partner, Chang Tsi & Partners
• Senior Associate, Patent Attorney, Lawjay Partners associated with Bird&Bird, Beijing, China （2021-2025）
• Attorney at Law, Patent Attorney, King & Wood Mallesons, Beijing, China （2016-2021）
• Patent examiner, patent licensing manager, CNIPA (2012-2016)

Representative Cases

• Represented a French innovator pharmaceutical company in a drug patent linkage lawsuit against a Chinese pharmaceutical firm.
• Represented a medical device patent invalidation case for a Chinese company.
• Represented a series of patent invalidation cases for a Chinese company involving hydraulic engineering facilities patents.
• Successfully represented a renowned Japanese chemical materials company in China in a series of patent invalidation, administrative, and infringement lawsuits against American and Chinese companies, maintained the validity of client’s patents in the second instance, involving patents regarding inorganic crystals and luminescent devices.
• Represented a famous Japanese materials company in China in a series of patent invalidation, administrative, and infringement lawsuits concerning polymer film patents.
• Represented a world-renowned glass manufacturer in China in a series of patent invalidation cases and related administrative lawsuits, successfully invalidating opposing patents with support from the Supreme Court.
• Represented a domestic power industry company in patent invalidation proceedings against a licensee, forcing the opponent to withdraw invalidation requests twice, thereby maintaining the validity of the client's patent.
• Participated in a series of patent infringement, invalidation, and administrative lawsuits between a major European chemical company and a prominent American chemical company, successfully invalidating five key opposing patents and achieving a comprehensive victory in related infringement lawsuits, with the court dismissing a 100 million RMB infringement claim.
• Represented a well-known Japanese cartoon character design company, successfully invalidating the infringer's patent, leading to administrative penalties and fines against the infringer by local authorities.
• Handled a series of patent infringement and invalidation cases (over ten) for a renowned Japanese polymer film manufacturer in China, successfully maintaining the validity of core patents during invalidation proceedings and assisting in settlement negotiations to achieve the client's commercial objectives.
• Represented a famous Japanese hardware products manufacturer in a series of administrative rulings and patent infringement lawsuits in China, achieving victories and participating in related patent invalidation cases, effectively combating infringing manufacturers and maintaining the client's global market share.
• Assisted a domestic health product company in European patent opposition procedures and related licensing negotiations, collaborating with foreign attorneys to prepare an FTO analysis report.
• Provided patent invalidation and infringement legal opinions for various domestic and international companies.
• Represented and assisted several Fortune 500 companies in patent licensing negotiations with American and Chinese companies, including drafting and revising term sheets, licensing agreements, and settlement agreements. Developed negotiation strategies and provided legal opinions on contract law and antitrust law related to licensing models.
• Participated in patent licensing negotiations between a Chinese semiconductor research company and a well-known American semiconductor storage manufacturer, drafting and revising related agreements and providing legal opinions.
• Represented a Chinese listed company in negotiations with a domestic research institute regarding graphene patent technology licensing, drafting and revising related agreements.
• Assisted a Chinese company in negotiations with Japanese and Korean companies regarding patent equity participation and transfer, drafting and reviewing related agreements.
• Represented a Chinese energy company in negotiations with two European companies on patent technology licensing and development, reviewing and revising agreements to facilitate the completion of transactions.

Education

• Master, Material Science and Engineering, Beijing University of Chemical Technology, 2012
• Bachelor, Polymer Material and Engineering, Beijing University of Chemical Technology, 2009

Bar Admission

• China Bar
• China Patent Bar

Language

• Chinese
• English
• Japanese