Areas of practice

Ms. Tai is a highly experienced patent attorney in the field of chemistry and her practice mainly focuses on pharmaceutical chemistry and polymer chemistry. 

Ms. Tai has represented internationally renowned multinational corporations in patent invalidation administrative litigations and patent infringement disputes, and assisted clients with various patent issues, including application, consultation, invalidation, administrative litigation, contact agency and training. 

Ms. Tai was the lead counsel representing Pfizer Inc. in the high-profile Viagra case in both invalidation and court proceedings. After nine years of battle, Ms. Tai eventually secured favorable rulings for the client from Beijing No. 1 Intermediate People’s Court and Beijing Higher People's Court, respectively. The case attracted extensive coverage by domestic and overseas media including The Wall Street Journal and was listed as one of the eight "IP Cases of the Year" in 2008.Ms. Tai also represented the drug giant Pfizer Inc. in an appeal over patent invalidation disputes concerning its blockbuster Lipitor following unfavorable decisions from Beijing No. 1 Intermediate People’s Court. Ms. Tai ultimately collaborated with other litigators to secure a critical victory before Beijing Higher People's Court (the court of final instance). This case attracted wide attention in the industry.

In 2016, Ms. Tai represented Roche to file an administrative lawsuit with the Beijing Intellectual Property Court and successfully revoke the defendant's review decision No. 88623. In 2018, Ms. Tai represented AstraZeneca before Beijing Higher People's Court on the patent invalidation case concerning Ticagrelor. The case was ruled in favor of the client.

In addition, Ms. Tai also served as lead counsel in representing many leading Chinese and international clients, such as Novartis, GSK, Merck, BMS and Eli Lilly in numerous patent invalidation and infringement lawsuits.With many years of experience in patent practice, Ms. Tai is also a highly recognized lecturer and project leader in a number of research projects, including:

1. Ms. Tai has been a highly recognized lecturer for many years for the “Patent Reexamination and Invalidation”, an induction training course offered by the All-China Patent Attorneys Association for new patent agents.

2. Ms. Tai participated in the research of the third amendment to the Patent Law. She co-authored with other members of the research group a 50,000-word thesis on the nature of the proceedings for invalidation requests which was included in the Research Report on the Third Amendment to the Patent Law and Implementation Rules published by the Department of Laws and Regulations of the State Intellectual Property Office (SIPO), now China National Intellectual Property Administration (CNIPA).

3. She led a team of ten people to undertake the soft research project of the CNIPA entitled “Study on the Costs and Strategies for Chinese Applicants Seeking Patent Protections Overseas” and led another eight-person team to undertake the research project of China Intellectual Property Society entitled “Comparative Study on Accurate Calculation of Damages for Patent Infringement”.

Ms. Tai is recognized in the international intellectual property community as one of the World’s Leading Patent Practitioners and Leading Lawyer by MIP and IAM for many consecutive years. She was also selected as one of the first National IP Leading Experts and awarded by then SIPO as one of the first Leading Patent Attorneys in China. Ms. Tai was named “Eminent Practitioner” in the category of intellectual property non-litigation by Chambers Asia Pacific Guide consecutively from 2016-2019. 

Work experience

Ms. Tai joined King & Wood Mallesons in 2019. Prior to this, she worked for China Patent Agent (HK) Ltd. as a manager of the chemical department, assistant to the general manager and deputy general manager. She was responsible for the formulation of the company's patent management policy, patent agent team planning and handling of important and complicated cases. 

Educational background

Mr. Tai graduated from Peking University with a bachelor's degree in applied chemistry and a master's degree in polymer radiation chemistry. In 2003, she obtained L.L.M from the University of London.

Her working languages are Chinese and English.


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