Qualification：

Patent Attorney since 2007
Lawyer Qualification Certificate since 2020

Technical Field：

Petroleum Processing, Polymer Materials, Organic Chemistry, Chemical Engineering, and Fine Chemicals

Languages：

English and Chinese

Education and Training：

Bachelor of Science in Polymer Materials, Beijing University of Chemical Technology, 1998

Master of Science in Applied Chemistry, Beijing University of Chemical Technology, 2001

Trained in European Patent Law at a German law firm, 2004

Trained in U.S. Patent Law at a U.S. law firm, 2009

Studied U.S. Patent Law, Trademark Law, Copyright Law, and related international intellectual property treaties at Benjamin N. Cardozo School of Law, New York, USA, fall semester 2013 

Professional Experience：

Patent Attorney, CCPIT Patent and Trademark Law Office, 2001–present

Practice Area：

Mr. Ji Liu manages patent infringement litigation, patent invalidation, administrative litigation, patent searches, and consulting services. He received training in European and U.S. patent law and practices at leading law firms in Germany and the United States. In 2013, he studied U.S. intellectual property laws at Benjamin N. Cardozo School of Law in New York. That same year, as a representative of the All-China Patent Agents Association, he accompanied former Commissioner Mr. Tian Lipu to a liaison meeting with the American Bar Association and delivered a presentation.
Mr. Liu has successfully handled over a thousand patent prosecution cases and dozens of patent invalidation and litigation cases, many involving renowned multinational companies. A civil patent infringement case he handled was selected as one of the top 10 typical IP cases by Tianjin courts in 2018.

Affiliation：

National Expert on Guidance for Overseas Intellectual Property Dispute Response

Member, Intellectual Property Appraisal Professional Committee, China Intellectual Property Research Association

Member, Trade Secrets Committee, International Association for the Protection of Intellectual Property (AIPPI)

Deputy Director, Dispute Resolution Professional Committee, Licensing Executives Society China (LES China)

Member, All China Patent Agents Association

Publication and Presentation：

Presentations
“Workshop 23: Recent Developments in China’s IP Protection: Enforcement Trends and Case Studies [CLE]” (Roundtable), LES USA & Canada Annual Meeting, Boston, October 2025
“Global Patent Litigation Trends and Their Impact on Technology Licensing” (Roundtable; “专题讨论六：全球专利诉讼趋势及对技术许可的影响”), LES China Annual Meeting, Xi'an, September 2025
“Key Points for Chinese Companies in Overseas IP Rights Protection and Dispute Response: Perspectives from U.S. and European Multi-Jurisdictional Practice” (“中国企业在海外维权与应对纠纷的要点：美国与欧洲多法域实务视角”), China Patent Annual Conference, Beijing, August 2025
“Evolving Legal Framework and Case Law for Generative AI in China” (Roundtable), LESI 2025 Annual Conference, Singapore, April 2025
“Practical Insights into Intellectual Property Protection and Classic Case Studies” (“知识产权保护实务与经典案例”), China Chamber of International Commerce 7th “Trade Hot Topics Salon” and CCPIT Commercial Law Foreign Promotion Event, Beijing, January 2025
“On Copyright Issues Related to AIGC” (Roundtable; “关于AIGC著作权”), LES Japan - LES China Joint Meeting, Tokyo, September 2024
“IP Risk Management for Chinese Companies Expanding Overseas”, 5th International Industrial and Commercial Intellectual Property Forum, Shenzhen, July 2023
“Cross-Border Intellectual Property Protection”, Foreign-related Dispute Management Experience Exchange Meeting, Xuzhou, September 2023
“Trade Secret & Patent Infringement Litigation in China”, IAM Webinar, June 2022
“Highlights of China's New Patent Law: Punitive Damages, Partial Design, and More…”, IAM Webinar, August 2021
“Patent Litigation in The Automobile Industry and Countermeasures For Automobile Companies”, China Automotive Innovation Conference, Changchun, July 2021
“Case Sharing on Foreign-related Intellectual Property Protection”, China International Fair for Trade in Services: Foreign-related IP Rights Protection Service Forum, Beijing, September 2020
“Trade Secret Protection” (Roundtable), Jinan 3rd International Industrial and Commercial Intellectual Property Forum, Jinan, January 2020
“Patent Infringement and Invalidation”, Shanghai Free Trade Service Center: IP Protection and Diversified Dispute Resolution Conference, Shanghai, June 2019
“Requirements for Experimental Data at the SIPO—with respect to sufficient disclosure, inventive step, and support requirements”, BRICS Intellectual Property Forum (BIPF), London, UK, 2016
“Global Patent Prosecution: Comparing Europe, China, and U.S. Law and Practice (Written Description)”, Intellectual Property Owners (IPO) Chat Channel Webinar, 2014
“CN Prosecution Issues Regarding CN Article 26.3”, as representative of All-China Patent Attorneys Association accompanying Commissioner Tian Lipu, SIPO/US Bar Liaison Council with ACPAA Meeting, New York, USA, 2013
“Legal Provisions and Practice on Inventive Step at the European Patent Office” (as trainer for All-China Patent Agents Association; “欧洲专利局创造性问题的法律规定与实践”), Materials Engineering Patent Examination and Agency Training, Chengdu, August 2015
“Legal and Practical Requirements for Sufficient Disclosure in the U.S., Europe, and Japan” (as trainer for All-China Patent Agents Association; “美、欧、日关于说明书充分公开的法律和实务”), Pharmaceuticals and Biotechnology Patent Examination and Agency Training, Changchun, July 2014

Publications
The Quiet Revolution in China's IP Judgment Enforcement, Patent Lawyer
China’s Legal Framework at the Intersection of IP and Antitrust Law, Managing IP (MIP)
An Introduction to and Analysis of Recent Developments in China’s Antitrust Regulation of Standard Essential Patents, Les Nouvelles
Chambers Litigation 2025, China Law and Practice, Chambers
The Impact of Artificial Intelligence on the Patent Agency Industry from the Perspective of DeepSeek: Are Industry Barriers Disappearing or Are New Opportunities Emerging? (“从DeepSeek看人工智能对专利代理行业的冲击：行业壁垒消失还是新机遇降临？”), IPR Daily
Punitive Damages in Patent Infringement under Chinese Intellectual Property Law: Legal Framework, Requirements, and Practical Insights, Patent Lawyer
Securing High Compensation for Intellectual Property Infringements in China, WIPR
Patent Protection: Litigation – Process, Time, Costs, Damages, Remedies, MIP
Protection on Information Network Dissemination Right in China, Practical Law Global IP&T - China
Patent Litigation 2022-2025, The Legal 500
China’s Supreme Court Awards Record-High Damages for Trade Secret Infringement – the “Vanillin” Case, LESI Global Licensing Report issue 3
Trade Secrets 2022-2025, Chambers Global Practice Guides
Guidance from China's Supreme Court in Light of Punitive Damages on Intentional IPR Infringement, AIPPI eNews
Punitive Damages in China, IAM Managing IP Lifecycle 2021
Country Comparative Guides China: Patent Litigation, The Legal 500
Patent Invalidation Strategies in China, IAM, 2019
Increasing Damages, Asia IP, 2019
Patents in Asia-Pacific 2019/2020: China, IAM, 2019
Discussion on Amendment and Partial Priority Issues of Markush Claims (“《马库什权利要求的修改和部分优先权问题探讨》”), Intellectual Property, 2018(1)
Changes to the Patent Law, Managing Intellectual Property (MIP), 2016
SIPO Proposes to Amend China's Patent Law, Asia IP, 2016
“Requirements for Sufficient Disclosure under U.S. Patent Law and Practice” (“美国专利法及其实践对说明书公开的要求”), Proceedings of the 5th IP Forum, All China Patent Agents Association Annual Conference, 2014

Representative Cases：

2024–2025: Represented a well-known enterprise in administrative litigation against a patent invalidation decision in the automotive primary oil field; won at both Beijing IP Court and Supreme People's Court, revoking the original decision; CNIPA re-issued invalidation decision declaring the patent entirely invalid.
2021–2025: Represented a famous Italian and German steel enterprise in defending against patent infringement claims by a Japanese steel company; involved complex legal issues; selected as a model case by the Supreme People's Court IP Court; heard over two days during IP Week; Supreme People's Court reversed the first-instance judgment in late 2025, resulting in victory.
2022–2024: Led litigation team representing a famous Chinese automotive enterprise in defending patent infringement on auto parts; Supreme People's Court IP Court reversed Beijing IP Court first-instance judgment, resulting in victory.
2020–2024: Led litigation team providing patent infringement litigation and invalidation services to a Chinese machinery manufacturer; all patents of the opposing party invalidated; won all related infringement litigations.
2023: Represented a Zhejiang medical device company; won retrial at Supreme People's Court, revoking prior judgments.
2020–present: Represented a famous Japanese printer company in patent infringement cases at Beijing, Guangzhou, Shanghai IP Courts, and Supreme People's Court; achieved full victories; also provided and completed non-litigation solutions.
2021: Represented a Swiss navigation chip company in patent infringement and anti-unfair competition cases.
2021: Led litigation team for a Chinese LED industry giant in patent infringement litigation and invalidation; total claimed damages reached RMB 160 million; involved responses, invalidations, and counterclaims.
2021: Represented a Fujian canned food company in anti-unfair competition case; forced withdrawal by presenting overwhelming evidence of good faith.
2020–2021: Led litigation team for a Chinese medical device manufacturer; opposing party's patent fully invalidated.
2019: Represented a Shanghai internet company; won patent invalidation, invalidating competitor's core patent.
2018: Represented a well-known Hangzhou e-commerce company; won patent infringement lawsuit; case selected as one of Tianjin Higher People's Court's top 10 typical IP cases in 2018.
2017–2018: Represented a Japanese ink company; won retrial at Supreme People's Court, defending all patent rights.
2016–2018: Represented Japanese Can-Manufacturing company; won first-instance administrative litigation.
Additional earlier successes in invalidations and defenses for Japanese, German, and other clients in chemical, ink, and can fields (2016–2018).
2014–2015: Served as internal advisor throughout a U.S. pharmaceutical company's patent retrial; case selected as one of Supreme People's Court's 2015 typical guiding cases.
2013: Represented a Danish pharmaceutical company; won invalidation of competitor's key product claims in China.