Leslie Xu
Partner Attorney at Law

Dr. Leslie Xu is a Partner at Chang Tsi and Head of its Shanghai Office, and currently serves as Director of the Chang Tsi Strategic Research Institute. He has long specialized in intellectual property law, combining strong academic credentials with extensive practical experience. He is committed to providing clients with comprehensive, actionable solutions that align legal compliance with business objectives. His practice areas include overall IP strategy planning, judicial and administrative protection of IP, online and domain name protection, anti-unfair competition and antitrust, as well as data compliance and corporate compliance governance.

As Director of the Chang Tsi Strategic Research Institute, Dr. Xu focuses on institutional developments, judicial trends, and global regulatory dynamics in cutting-edge fields such as IP, artificial intelligence, data governance, and the platform economy. He leads his team in conducting systematic legal research, industry trend analysis, and cross-jurisdictional comparative studies, regularly producing white papers, special reports, and strategic insights. These efforts help enterprises proactively identify regulatory changes and policy developments, assess legal risks in a forward-looking manner, optimize their IP portfolios and business strategies, and achieve coordinated advancement of compliance and innovation.

In practice, Dr. Xu has extensive experience advising multinational corporations and high-growth enterprises on IP strategy and risk management. His industry coverage includes high technology, consumer goods, energy, advanced manufacturing, financial services, and new media. He has led his team in handling numerous complex non-contentious IP matters and high-stakes infringement litigations, securing landmark judgments and substantial damages for clients. He also provides legal support for cross-border investments and international expansion, particularly assisting Chinese enterprises in the European market with IP compliance and dispute resolution, and is well versed in international collaboration and cross-cultural communication.

Dr. Xu holds a Ph.D. in IP Law. He has conducted research as a visiting scholar at the University of California, Berkeley, and the Max Planck Institute for Innovation and Competition in Germany. He is a recipient of the German Chancellor Fellowship (Alexander von Humboldt Foundation) and the UK Chevening Fellowship, among other international honors. He also serves as an expert advisor on IP and competition law for various government authorities and has published extensively in leading Chinese and international academic journals.

+86 21 6168 2668
Trademark / Copyright / Litigation & Disputes Resolution
Shanghai

Years with IP Matters

Since 2014

Professional Experiences

  • Partner & Head of Shanghai Office & Director of Chang Tsi Strategic Research Institute, Chang Tsi & Partners, Shanghai, China
  • Counsel & Head of Shanghai Office, Chang Tsi & Partners, Shanghai, China
  • Visiting Lawyer, Boehmert & Boehmert, Munich, Germany
  • Associate, Norton Rose Fulbright Shanghai Pacific Legal joint operation office, Shanghai, China
  • Associate, Chang Tsi & Partners, Shanghai, China

Representative Cases

  • Represented many multinational corporations like The Home Depot, Johnson Controls, Four Seasons Hotels, Honeywell, Guinness World Records, etc., through administrative protection, customs protection, C&D letters, online complaints, civil litigation, negotiation, and other channels to effectively stop infringements;
  • Provided full-range services for Johnson Controls to protect their well-known brands in fields such as temperature control, machinery, energy, etc., assisting with trademark portfolio management, including filing and IP due diligence, domain name disputes, internet infringement protection, etc.;
  • Represented Charles Schwab in conducting annual market checks in China and effectively protected client’s rights through online & onsite investigations, C&D letters, and complaints to the Hong Kong Company Registry;
  • Represented Iconix Brand Group to defend against trademark squatter before Chinese customs, effectively promoting the smooth export of OEM products, avoiding high direct losses, and reducing future risk;
  • Represented a multinational frozen food company in safeguarding their core business interests in China through filing, cancellation, litigation, negotiation, and signing of agreements, etc.;
  • Represented a Chinese technology company to file a series of civil litigations against copyright infringers and obtained several favorable judgments, and successfully applied for enforcement;
  • Represented a US retail company filed a trademark infringement and unfair competition litigation with a local court against a domestic company and got a favorable judgment;
  • Represented a North American start-up to seize back its domain names, launch its Wholly Foreign-Owned Enterprise and website in China, and establish all-round IP management and protection system;
  • Represented a European company in the industry of flavor and fragrance materials to secure its rights over its key marks, which a local company preempts, stop the abuse of logos and copyrighted images and false statements, and seize back the trademarks amicably and cost-effectively;
  • Represented several European and Asian corporations in a series of merger control review procedures for M&A transactions in Asia and worldwide.

Publication

  • Suchy, Donna P., ed. IP Protection in China, Second Edition, ABA Book Publishing, 2025, Contributions to the revision of chapters Trademark Law of the PRC and Intellectual Property Rights and Antitrust in China.
  • (In English) China: Amendments to Laws and Regulations Bring New Possibilities for Patent Ligation, The Patent Litigation Review 2025, IAM, 2024.
  • (In English) New Trends, New Possibilities: A Comment on the Proposed Fifth Amendment to China’s Trade Mark Law, GRUR International - Journal of European and International IP Law, Volume 72, Issue 10 2023; 
  • (In English) Fighting against COVID-19 Related Trademark Applications: How China Reversed the Trend? China Intellectual Property (English version), Issue 98, 2020; 
  • Changes in the US Trademark Registration Examining Standard for Offensive Marks and its Inspiration: A Discussion Starting from COVID-19 Related Trademark Applications, Intellectual Property, Vol.1, 2021 (CSSCI);
  • Green Technology Intellectual Property Protection under the Goal of Carbon Neutrality: Status Quo and Improvement, Science Technology and Law, Vol.6, 2021 (CSSCI);
  • Understanding and Application of the "Adverse Effect" Clause of Trademark Registration: An Analysis Based on the Study of Comparative Law and Interpretation of Law, Electronic Intellectual Property, Vol.11, 2020 (CSSCI);
  • Reflections on the Value of Punitive Damages in Intellectual Property Law from a Comparative Perspective, Electronica Intellectual Property, Vol.10, 2022;
  • The Construction of Urban Soft Power from the Perspective of Intellectual Property: A Case Study of Shanghai, Global Cities Research, Vol. 3, 2021;
  • New Trends in the Administrative Protection of Trademarks: Comments on the 2017-2019 National Typical Cases of Administrative Protection of Trademarks, IPR Daily, July 17, 2020.

Social Services

  • East China University of Political Science and Law, Postdoctoral Researcher
  • China IP SME Helpdesk of European Commission, IP Expert 
  • Shanghai Eastern International Commercial Mediation Center, Mediator
  • IP Committee of Shanghai Lawyers Association, Member
  • Shanghai Lawyers Legislative Think Tank, Expert
  • Shanghai Pudong IP Administration, Expert
  • Shenzhen Market Supervision Bureau, Expert
  • Nanjing IP Protection Center, Expert
  • Shanghai University of Political Science and Law, Lecturer

Education

  • Ph.D. in IP Law, East China University of Political Science and Law (2022)
  • Co-supervision of Ph.D. Study, University of California, Berkeley (2020)
  • Juris Master, East China University of Political Science and Law (2014)

Awards

  • Prominent Legal Practitioner (IP): LegalOne Yangtze River Delta Awards 2025
  • Rising Lawyer: ALB 2025 China Regional Ranking - Yangtze River Delta
  • 2025 CLECSS Top Ten Outstanding Lawyers
  • Outstanding Figure of Shanghai in IP Services
  • Selected for the first batch of the Legal Talent Pool (foreign-related lawyers) of the Shanghai Judicial Bureau (2024)
  • Elite Young Lawyers in Pudong New Area of Shanghai (9th Edition, 2024)
  • 2024 WIPR Global Leader
  • 2024 LexisNexis Asia "40 Under 40" 

 

Bar Admission    

China Bar

Languages  

Mandarin Chinese
English