Zhanjiang Zhang Partner
Beijing
  • Practice： Intellectual Property、Litigation and Dispute Resolution、Antitrust and Competition
  • Languages： Mandarin、English
  • Tel： （ 86-10) 5675 3048
  • Email： zhang.zhanjiang@jingtian.com
  • Practice： Antitrust and Competition、Intellectual Property、Litigation and Dispute Resolution
  • Languages： Mandarin、English
  • Tel： （ 86-10) 5675 3048
  • Email： zhang.zhanjiang@jingtian.com
Zhang Zhanjiang is an esteemed partner at BEIJING JINGTIAN & GONGCHENG, specializing in Intellectual Property Law, Dispute Resolution and Anti-Unfair Competition Law. His areas of expertise include patent invalidation and litigation, intellectual property due diligence, trade secret litigation, enterprise IP management system development, patent application, among others.
 
Dr. Zhang has amassed 15 years of experience in intellectual property law. Before his current role as a partner at JINGTIAN & GONGCHENG, Dr. Zhang’s career had embraced a variety of significant positions, including serving as a research scientist at the Chinese Academy of Sciences, a patent examiner at the China National Intellectual Property Administration, and a lawyer and patent agent at prominent law firms such as King & Wood Mallesons and Haiwen & Partners. His technical acumen encompasses new materials, chemical engineering, pharmaceuticals, medical devices, semiconductors etc.
 
Dr. Zhang is renowned for his pragmatic approach to complex legal challenges, dedicating himself to patent invalidation and litigation, patent infringement litigation and administrative enforcement, patent due diligence and strategic patent management, patent examination and review, and intellectual property due diligence. During his tenure at the China National Intellectual Property Administration, Dr. Zhang handled over 500 invention patent applications and reviewed cases within the fields of new materials, chemical engineering, medical devices, general machinery, working with multiple well-known domestic and overseas companies. In his legal practice, Dr. Zhang has represented numerous well-known domestic and overseas companies in significant patent and trade secret cases, many of which have been recommended as typical cases by the judicial system and the China National Intellectual Property Administration. In addition, Dr. Zhang has directed extensive intellectual property due diligence projects, offering services such as FTO analysis, patent arrangement analysis, core patent stability analysis, product and patent correspondence analysis, service invention risk assessment, technical secret infringement risk assessment and special legal opinions on intellectual property in the IPO process. His clientele includes notable firms such as Hillhouse Capital Advisors, Ltd., China Life Healthcare Fund, New Horizon Capital, Hongtai Aplus, CDH Investments, TPG Capital, Enze Capital, and IDG Capital. 
 
Dr. ZHANG holds a Ph.D. in Science from the Chinese Academy of Sciences. He is also qualified as licensed attorney and patent agent in China. Besides his legal practice, he is also an accomplished scholar in the IP theory, contributing over 60 articles on intellectual property to esteemed journals and other platforms, specifically Chinese Invention & Patent, China IP Magazine, Electronic Intellectual Property, Patent Agency, China Law Insight and Frontier of Intellectual Property.

Education

Doctor of Science in Physics and Chemistry, Chinese Academy of Sciences (Integrated Master's and PhD Program)

Bachelor of Science in Material Chemistry, China University of Geosciences

 

Professional Experience

Partner at BEIJING JINGTIAN & GONGCHENG

Senior consultant, Lawyer and Patent Agent at Haiwen & Partners

Lawyer and Patent Agent at King & Wood Mallesons

Patent Examiner at China National Intellectual Property Administration

Research Scientist at Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences

 

Qualifications

Lawyer, Chinese Bar Association

Patent Attorney, Chinese Patent Bar Association

Senior Intellectual Property Specialist (Associate Senior Professional Title) 

Internal Auditor for Enterprise Intellectual Property Management System

 

Professional Memberships and Honors

Mediator, People’s Mediation Committee for Intellectual Property Disputes, China Patent Protection Association

Rights Protection Specialist, China (Nantong) Intellectual Property Protection Center, China (Hainan) Center, China (Changchun) Center

Mediator, People’s Mediation Committee for Intellectual Property Disputes, China (Changchun) Intellectual Property Protection Center

Committee Member, Committee on the Application of Intellectual Property, Capital Intellectual Property Service Industry Association

Committee Member, Patent Law Committee, Beijing Intellectual Property Law Research Association

Training Expert, Beijing Patent Attorneys Association

Member of the International Lawyer Talent Pool, Beijing Lawyers Association

Expert Member, Fujian (Ningde) Intellectual Property Think Tank

Consultant Expert, Zhejiang (Changxing) Intellectual Property Rights Protection and Assistance Center

IP Mentor, Innovation and Entrepreneurship Service Center, Sichuan (Neijiang) High-tech Zone

Columnist for IP ForeFront (an emerging media)

 

 

Patent Examiner: Landmark Cases in Patent Examination and Review

During his tenure at the National Intellectual Property Administration, Dr. ZHANG handled over 500 invention patent applications and reviewed cases in technical fields such as new materials, chemical engineering, medical devices, and general machinery. He worked with a diverse portfolio of both domestic and international clients including major corporations like LG, Huawei, BMW, BOE, Siemens, SMIC, Samsung, TSMC, Mitsubishi, TOTO, Hongfujin, China Steel, Baosteel, and Nippon Steel.

 

Professional Legal Practice: Landmark Cases in Patent Litigation, Invalidity, and Administrative Litigation

Environmental Technology Company in China: Successfully managed a case involving flue gas desulfurization patents, leading to a pivotal decision at the Beijing Intellectual Property Court and the Supreme People’s Court, recognized as one of the Top 10 significant judicial cases of 2020.

Catering Group in China: Addressed two German invention patents, resulting in key rulings in patent invalidity and administrative disputes highlighted in the Top 10 national review cases of 2019.

Chemical Company in Netherlands: Directed second-instance patent infringement litigation for chemical patents at Jiangsu Higher People's Court, cited as the Jiangsu IP Case of the Year 2018.

Japanese Pharmaceutical Company: Oversaw a significant case at the Supreme People’s Court regarding Macushield patent claims, featured in the Supreme Court IP Case Annual Report 2017.

Chemical Company in Shanghai: Managed complex high polymer patent invalidity disputes at the Supreme People's Court.

Catering Group in China: Led litigation for 10 patent infringement cases across multiple cities including Beijing and Shanghai, with claims totaling over 100 million RMB.

Healthcare Company in USA: Provided expert advice on syringe patent infringement and invalidity issues at the Beijing Intellectual Property Court.

Global 500 Company in Japan: Offered guidance on lithium-ion battery patents, encompassing administrative enforcement and invalidity consultations in Hangzhou.

Battery Materials Company in Hebei: Developed litigation strategies for lithium-ion battery patents, involving case values exceeding 100 million RMB.

Renowned Aerogel Company in USA: Handled cases involving aerogel patents, focusing on patent invalidation.

Well-known Specialty Chemicals Company in USA: Managed patent invalidation cases related to fuel additives.

Prominent Specialty Chemicals Company in Switzerland: Worked on patent invalidation for two flame retardant patents.

Famous Motorcycle Manufacturer in USA: Addressed design patent invalidation cases.

Notable Toy Manufacturer in USA: Provided consultancy and analysis for infringement issues related to shooting toys.

Medical Devices Company in China: Led IP litigation involving Japanese patents for blood purification devices, with disputes worth 20 million RMB.

Medical Equipment Group in Shandong: Addressed patent infringement claims related to hemodialysis products.

Mobile Accessories Supplier in China: Managed patent invalidity and infringement cases concerning mobile camera patents from a Japanese subsidiary in Fujian.

Global 500 Company in South Korea: Advised on smartphone patent issues, including patent invalidation and patent infringement litigation consultancy.

Global 500 Company in China: Managed cases involving water heater and air conditioner patents, including series of patent invalidations and administrative litigation for patent invalidity declaration.

Optoelectronics Company in Taiwan: Handled patent invalidation cases for two liquid crystal display patents.

Listed Photovoltaic Group in China: Provided consultancy on patent invalidation for solar cell patents.

Personal Transport Company in China: Dealt with patent invalidation for a utility model patent of a balance vehicle owned by a U.S. patentee.

Personal Transport Company in China: Handled the second-instance patent infringement litigation in the Beijing High Court concerning the design patent of a balance vehicle owned by a U.S. patentee.

Iron and Steel Company in Baoshan: Handled a special steel patent case against a French patent holder.

Energy Conservation and Environmental Protection Technology Company in China: Conducted litigation and managed invalidity cases concerning flue gas desulfurization equipment.

Specialty Chemicals Company in China: Supervised a reexamination case at the Supreme People’s Court concerning patent invalidity declaration.

Shared Mobility Enterprise in China: Managed multiple cases involving smart lock patents, including administrative patent infringement investigations and series patent invalidations in Beijing Intellectual Property Office.

Vehicle Networking Sector: Handled appellate patent infringement litigation related to in-vehicle terminals at the Supreme People’s Court.

Prominent Video Company in China: Engaged in patent infringement litigation concerning two video data caching patents at the Beijing Intellectual Property Court.

Optoelectronics Technology Company in Shenzhen: Conducted administrative litigation for patent invalidation of laser rangefinder patents at the Beijing Intellectual Property Court.

Optoelectronics Technology Company in Zhejiang: Addressed patent invalidation administrative litigation for a photometer patent at the Beijing Intellectual Property Court.

 

Professional Legal Practice: Landmark Cases in Enterprise Investments and Public Offerings within the Field of Intellectual Property 

Provided patent stability analysis and competitive patent layout analysis for a renowned American pharmaceutical company.

Conducted pre-market Freedom to Operate (FTO) searches for a leading German pharmaceutical company.

Offered patent infringement consultancy services to a major American medical device company.

Performed specialized IP due diligence for a Chinese pharmaceutical enterprise, focusing on Vitamin B-related patents. This included core patent stability analysis, patent-product correspondence analysis, and FTO analysis.

Delivered IP due diligence for a prominent Chinese medical technology company on surgical robots.

Conducted IP due diligence for a well-known Chinese biotechnology company, focusing on recombinant collagen.

Provided patent layout analysis for a notable American automotive company.

Conducted patent layout analysis for an emerging biotechnology company in Ningbo.

Offered patent navigation and early warning analysis for a Beijing-based software technology company.

Developed patent layouts for the automotive sector in China.

Analyzed patent layouts for the vending machine sector in Japan.

Conducted patent layout analysis in the investment casting industry.

Performed global and Chinese patent layout analysis for Sandvik AB.

Provided IP due diligence services during IPO and investment processes for multiple institutions, including Hillhouse Capital, China Life Health Fund, New Sky Capital, Hongtai Fund, Dinghui Investment, and TPG Capital.

 

Professional Legal Practice: Landmark Cases in Patent Agency

Dr. ZHANG represented various clients including BMW, Lanzhou University, Beijing Normal University, Jiangsu Mole Electronic Technology Co., Ltd., Ningbo Yisaiteng Company, Xinxiang Dongfeng Xinda Heavy Industry Co., Ltd., Beijing Wezhong Yiye Co., Ltd., Zhejiang Dajinglei Semi-conductor Technology Co., Ltd., and Beijing Hong’an Shuidi Company in diverse patent applications and strategies.

 

Professional Legal Practice: Landmark Cases within the Fields of Technical Secrets, Trademarks, Copyrights and Intellectual Property Research

Dr. ZHANG handled cases and provided consultancy in technical secrets infringement, trademark litigation, and copyright disputes for companies in Germany, China, and the USA, among others. His significant contributions include, but are not limited to, the following:

Famous German Rolling Mill Equipment Supplier: Provided consultancy on technical secrets infringement.

Chemical Equipment Company in Zhejiang: Handled a technical secrets infringement case.

Automotive Company in China: Managed a technical secrets infringement case.

Prominent German Wall Heater Manufacturer: Led trademark infringement litigation, opposition, and invalidation cases.

Well-known Stage Supplies Supplier in USA: Offered trademark infringement consultancy.

Petrochemical Enterprise in China: Advised on trademark invalidation.

Real Estate Company in China: Consulted for the recognition of a well-known trademark.

Leather Goods Company in China: Conducted administrative litigation for trademark invalidation.

German Company vs. Chinese Catering Company: Resolved an unfair competition dispute.

Famous Chinese Band vs. Client: Addressed copyright infringement upon the song Little Frog.

Conducted a legal issues study for the China Patent Award.

Led a research project on Intellectual Property Securitization.

Directed a research project on the Intellectual Property Credit System.

Dr. Zhang is also an accomplished scholar in the IP theory, contributing over 60 articles on intellectual property to esteemed journals and other platforms, specifically Chinese Invention & Patent, China IP Magazine, Electronic Intellectual Property, Patent Agency, China Law Insight, Frontier of Intellectual Property, etc.

 

[1] Specialized, Refined, Distinctive, and Innovative IP Cultivation Series IV: Drafting IP Ownership Clauses in Industry-Research Collaboration Agreements, Frontier of Intellectual Property Personal Column, June 2023.

[2] Specialized, Refined, Distinctive, and Innovative IP Cultivation Series III: Key Points in Writing the Chinese Patent Award Application, Frontier of Intellectual Property Personal Column, May 2023.

[3] Specialized, Refined, Distinctive, and Innovative IP Cultivation Series II:  How to Effectively Protect Patents for Innovative Achievements, Frontier of Intellectual Property Personal Column, April 2023.

[4] Specialized, Refined, Distinctive, and Innovative IP Cultivation Series I:  IP Risk Management in the Process of Independent Innovation, Frontier of Intellectual Property Personal Column, March 2023.

[5] Identification of Impurity Components in Closed Composition Patent Claims, Frontier of Intellectual Property Personal Column, September 2022.

[6] Exploring the Construction of Intellectual Property Operation Platforms Based on the Niche Theory, Frontier of Intellectual Property Personal Column, July 2022.

[7] Provisional Protection Rules for Invention Patent Applications, Frontier of Intellectual Property Personal Column, March 2022.

[8] Evaluation of China’s Patent Open License System, ALB Legal Guide to the Greater Bay Area, November 2021.

[9] On the Retrospective Effect of Patent Invalidation Declarations, Frontier of Intellectual Property Personal Column, October 2021.

[10] Analysis of Rewards and Compensation Rights for Inventors of Service Inventions, Frontier of Intellectual Property Personal Column, September 2021.

[11] Legal Exemptions in Counterclaims for Reverse Engineering, Frontier of Intellectual Property Personal Column, August 2021.

[12] Judicial Rules for Disputes over the Naming Right in Service Inventions, Wolters Kluwer Legal Information Database, July 2021.

[13] The Application of Patent Analysis in the Porter Five Forces Model Study, Chinese Invention & Patent, May 2021.

[14] Annual Report of Chinese Intellectual Property Lawyers, China Legal System Press, April 2021 (Co-authored, contributed to the chapter on trade secrets).

[15] Understanding and Application of Reasonable Licensing Fees in Punitive Damages for Intellectual Property, China Law Insight, April 2021.

[16] Commentary on the Interpretation of the Application of Punitive Damages in Civil Cases of Intellectual Property Infringement, 2021, Issue 3.

[17] Criteria for Determining the 'Not Known to the Public' Requirement in Trade Secrets, China Law Insight, January 2021.

[18] Exploration of the Defendant's Duty of Care in the Defense of Legitimate Sources in Patent Infringement Litigation, China Law Insight, December 2020.

[19] Criteria for Accepting Non-Infringement of Intellectual Property Rights Claims Based on the Analysis of Litigation Interest, China Law Insight, October 2020.

[20] Rules for Determining Priority in Markush-type claims, Chinese Invention & Patent, October 2020.

[21] Three-Step Method for Determining Product Categories in Decisions on Design Patent Infringement, Patent Agency, March 2020.

[22] Search Strategies for Patent Literature in the Field of Semiconductor Film Fabrication Equipment, July 2020.

[23] Rules for Equivalence Determination of Functional Features in Patent Infringement Litigation, Patent Agency, February 2020.

[24] Defense of Registered Trademark Rights Conflicts in Trademark Infringement Litigation, Wolters Kluwer Legal Information Database, May 2020.

[25] Rules for Determining Inventiveness in Infringement Disputes Over Integrated Circuit Layout Design, April 2020.

[26] Infringement Adjudication Rules for Claims Including Use Environment Characteristics, March 2020.

[27] Standards for Evaluating Service Inventions Completed in the Execution of Duties by an Entity, Chinese Invention & Patent, January 2020.

[28] Exploration on the Cultivation Strategy of Enterprise Trademarks, Chinese Invention & Patent, May 2019.

[29] Criteria for Evaluating the Inventiveness of Utility Model Patents in Invalidity Proceedings, Chinese Invention & Patent, March 2019.

[30] Amendments to Markush-type Claims in Invalidity Proceedings, Chinese Invention & Patent, February 2019.

[31] Consideration of Technical Effects in the Inventiveness Determination of Markush-type Claims, Chinese Invention & Patent, May 2018.

[32] A Definitive Judgment by the Supreme Court: Possible Amendments to Markush-type Claims in Invalidity Proceedings, IPLead, February 2018.

[33] Comparison of Unfair Competition Acts and Legal Liabilities Before and After the Amendment of the Anti-Unfair Competition Law, Wolters Kluwer Legal Information Database, November 2017.

[34] Relativism in the Impact of Design Elements on Overall Visual Effect, Electronic Intellectual Property, October 2017.

[35] Analysis of Patent Infringement Litigation in Automotive Design in China, 2017.

[36] On Defense Strategies in Design Patent Infringement Litigation, Chinese Invention & Patent, August 2017.

[37] Study on Patent Protection Strategies for Projects Funded by the National Natural Science Foundation of China, Journal of Sun Yat-Sen University, January 2017.

[38] On the Logical Relationship Between Novelty and Inventiveness Clauses in Patent Law, Chinese Invention & Patent, December 2016.

[39] Risks and Prevention of Patent Rights as Capital Contributions in Company Establishment, Chinese Invention & Patent, September 2016.

[40] Exploring the “Clarity” Issue in Domestic Patent Applications Through a Review Case, Patent Agency, May 2016.

[41] Overview and Prospects of Intellectual Property Services Development in China, Chinese Invention & Patent, August 2015.

[42] Intellectual Property Protection Strategies under the Belt and Road Initiative, Chinese Invention & Patent, June 2015.

[43] Study on the Difficulties and Countermeasures in the Development of Patent Pledge Financing. China Intellectual property. 2015(5).

[44] Strategies for Efficient Search for MC Classification Numbers in the Chemical Apparatus Field, Patent Examination Research [M], 2015.

[45] Strategies for Drafting Claims in Patent Application Filings, Journal of Jilin Engineering Normal University, September 2013.

[46] Exploring Corporate Branding Strategies through the Dispute of a Well-Known Herbal Tea Brand, Chinese Invention & Patent, September 2013.

[47] Dry Synthesis of Silver Nano-particles, Journal of Imaging Science And Technology, 2013, Vol. 31(4).

[48] Reflections on the Patent Cross-Licensing Between Apple and HTC, Chinese Invention & Patent, February 2013.

[49] On the Construction of a Patent Enforcement System, Proceedings of the 2014 Forum for All-China Patent Agents

[50] Enhancing Search Capabilities to Improve Patent Quality, Proceedings of the 2014 Forum for All-China Patent Agents

[51] Strategies for Efficient Retrieval in the DII Database, Chinese Invention & Patent, July 2013.

[52] Avoiding Insufficiencies in Disclosure from a Substantive Examination Perspective, Proceedings of the 2013 Forum for All-China Patent Agents.

[53] Utilizing Patent Analysis in Technology Research and Development, Journal of Jilin Engineering Normal University.

[54] Research on Sandvik’s Patent Strategy in China, Defense Manufacturing Technology, June 2014.

[55] Status Analysis of Patent Applications in Investment Casting Technology, Journal of Jilin Engineering Normal University, September 2013.

[56] Preliminary Application of Baidu Library in Patent Examination, Chinese Invention & Patent, December 2013.

[57] Study on Search Strategies for the ALLOYS Database, Journal of Changchun University of Technology (Natural Science Edition), December 2012.

[58] Annual Report of Chinese Intellectual Property Lawyers, China Legal System Press, 2022 (Co-authored, contributed to the chapter on trade secrets).