Xiaoling Duan

Senior Partner at Wanhuida Intellectual Property

Duan Xiaoling is a partner at Wanhuida Intellectual Property and one of the most experienced patent attorneys in the firm's patent team. Her practice focuses on chemicals, chemical engineering, pharmaceuticals, materials science and the food industry.

Ms Duan has been practising in the patent field for 30 years. Before joining Wanhuida in 2012, she worked for 12 years at the State Intellectual Property Office (the predecessor of the China National Intellectual Property Administration – CNIPA), where she served as a senior patent examiner and deputy director of an examination division from 1988 to 2000. She later joined private practice as a patent attorney, leading the chemical and bio department of China Patent Agent (HK) Ltd for over 10 years.

Ms Duan is well recognised by peers and clients for her expertise and abundant experience in the patent field, including patent filing and prosecution, re-examination, invalidation and litigation. She has been instrumental in reaching successful outcomes in high-calibre cases and has led the firm’s patent team in obtaining many favourable decisions for clients. She remains active in contributing to China’s legislative developments and frequently provides pertinent advice on these topics. She excels in advising clients, both at home and abroad, on patent strategies and in providing comprehensive solutions to complicated cases.

Ms Duan is listed as one of the “National Intellectual Property Leading Individuals” by the CNIPA. She has also received accolades from various legal media, including “Notable Practitioner” for intellectual property in China by Asialaw Profiles (2016-2021), “Recommended Individual” in the prosecution field by IAM Patent 1000 (2018-2021) and “Recommended IP Lawyer” by The Legal 500 (2015).

Ms Duan is a member of the council of the Chinese National Group of the International Association for the Protection of Intellectual Property (AIPPI). She is also a member of the AIPPI IP Office Practice Committee and the AIPPI Membership Committee.

Professional associations


Firm details

Wanhuida Intellectual Property
Yiyuan Office Building
Friendship Hotel
1 Zhongguancun Street South
Haidian District
Beijing 100873

Contact details

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