Zhifan IP Attorneys

Powering Innovation

Zhifan IP Attorneys^®

Committed to China's IP ecosystem with end-to-end solutions to international IP world

Zhifan IP Attorneys ^®

Powering Innovation, Linking the World

Zhifan IP Attorneys ^®

About Us

Committed to providing comprehensive international services for innovative entities

500+Professionals2000+PCT filed by the group annually3000+Oversea New Patent Filings1000+Oversea New Trademark FilingsAs an international portal of Zhifan Group, ZHIFAN IP Attorneys Ltd. serves China’s high-end and international markets as …

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Professional Team

Annual PCT International Applications Submitted by the Group

Annual Overseas Patent Applications Submitted by Group

Annual Overseas Trademark Applications Submitted by Group

Service

We provide comprehensive, one-portal IP services to be your IP Hub in China

Patent

Patent Prosecution

Strategic Design

Pre-filing Search

Patentability Analysis

Domestic and Overseas Patent Filing

Patent Reexamination

Patent Invalidation

Patent Administrative Litigation

Patent Infringement Litigation

Patent Infringement Opinion

Patent Design-Around

Patent Licensing

Technology Transfer

Patent Monitoring

Patent Maintenance

Prior Art Search

Technical Translation

Patent Customs Protection

Patent Prosecution

Patent Drating

Trademark

Domestic Filing

Oversea Filing

Trademark Prosecution

Trademark Reexamination,

Trademark Dispute

Trademark Revocation

Trademark Administrative Litigation,

Trademark Civil Litigation

Trademark Criminal Litigation

Trademark Monitoring

Trademark Search

Trademark Licensing

Trademark Design

Evidence Investigation & Collection

Trademark Customs Protection

Computer Software Copyright Registration

IC Layout Design Registration

Legal

Administrative Disputes

IP Legal Consulting

IP Contract Drafting

IP Evidence Collection

E-Platform IP Enforcement

Trade Secret Protection

Unfair Competition

Professional Team

Elite Minds of Zhifan IP Attorneys, Trusted by China's Best, Meet China's Innovation Frontier

Shareholders Electrical Mechanical & Design Chemical & Biotech Legal & Consulting Trademark Copyright Foreign Counsel

Daniel HUANG

Mr. Huang is a qualified Chinese Patent Attorney having practiced intellectual property law for nearly 13 years. He holds a Master of Science degree in mechanical engineering from Tsinghua University. He also studied courses related to intellectual property and capitalization at the School of Economi…

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Zhidong LI

Mr. Li Zhidong holds a Masters degree in Biochemistry from Tsinghua University. Leveraging his profound academic background and technical expertise, he has demonstrated exceptional proficiency across multiple fields, including biology, molecular biology, organic chemistry, and pharmacology.With over …

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Zhilian SU

Ms. Zhilian SU is a senior patent attorney with 16+ years of experience in Intellectual properties. She graduated from Beijing University of Posts and Telecommunications in 2007 and has a Masters Degree in Communication Engineering.With her expertise on patent drafting, prosecution, and litigation, S…

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Zhilian SU

Ms. Su is a senior Partner at Zhifan IP Attorneys and a Member of the firm’s Management Committee. As the head of the international team, she specializes in intellectual property law, with a concentration on international prosecution, patent litigation, and consulting. Her expertise spans nearly two…

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Wei SUN

Mr. Sun Wei (promoted to department head in 2023) oversees 1,000+ patent cases, specializing in automotive and AI portfolio development. Key clients include BAIC Modern and Tsinghua University.

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Bin ZHANG

Mr. Zhang Bin joined our firm in 2013 with 12 years of patent experience. He has handled thousands of patent prosecution cases in electrical fields, specializing in patent mining, patent portfolio development, re-examination, and infringement analysis. He has led core patent mining projects for domes…

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Shufeng CUI

Mr. Cui Shufeng joined our firm in 2017 with 8 years of experience in patent prosecution. Specializing in smart control, refrigeration systems, and automotive technologies, he provides comprehensive IP services, including patent mining, drafting, OA responses, and portfolio development. He has conduc…

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Chunxia DONG

Ms. Dong Chunxia (joined 2021) excels in complex patent prosecution and portfolio development for Beiqi Foton and Tsinghua University. Certified agent for energy and automotive clients.

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Xiao LI

Ms. Li Xiao joined in 2021, excelling in patent drafting, OA responses, and portfolio development for automotive and academic clients. She has supported automakers like Beiqi Foton and Changan, as well as Tsinghua University, in PCT applications and patent enforcement strategies.

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Yushun HAN

Yushun HAN Patent Attorney M.S. and B.S., Beijing Institute of Technology, Material Science and Engineering Senior Chinese Patent Attorney, 15+ years of patent practice with 6-year in top Chinese firm and 8-year as Patent Examiner in CNIPA/SIPO.The mixed experiences endowed Yushun the deep understand…

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Feng GAO

Ms. Gao Feng graduated from Xian Jiaotong University in 2013 with a Masters degree and subsequently joined our firm as a patent attorney. With 10 years of professional experience in patent prosecution and outstanding performance, she was appointed as Head of the Mechanical Department in January 2021.…

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Bo LI

Ms. Li Bo (10 years’ experience) oversees mechanical patent strategies for Midea and GAC Group. Recognized for invalidation defense and multi-jurisdictional filings.

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Han LIU

Ms. Liu Han (joined 2021) specializes in global patent prosecution (US/EP/IN/BR) for automotive and appliance clients like GAC Group and Beiqi Foton. Certified agent for complex technical disclosures, achieving high client satisfaction.

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Cunxin XIE

Ms. Xie Cunxin obtained her Masters degree from the Chinese Academy of Forestry Sciences in 2019. She subsequently joined an environmental protection manufacturing enterprise, where she engaged in mechanical-related work and accumulated substantial expertise in the mechanical engineering field. In 20…

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Xinyu JIANG

Ms. Jiang Xinyu graduated from China University of Mining and Technology in 2022 with a Bachelors degree. During her academic years, she applied for and served as the leader of a university-level innovation and entrepreneurship project. After graduation, she joined a large private manufacturing enter…

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Zhidong LI

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Lulu SUN

Ms. Sun Lulu holds a Master of Science degree from Peking University and has over a decade of specialized experience in patent prosecution within the biochemistry field. Leveraging her keen insight into cutting-edge technologies and profound technical expertise, she has successfully managed more than…

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Yarui WANG

Since entering the biochemical patent prosecution field in 2016, Ms. Wang Yarui has served at China Science Patent & Trademark Agent Ltd. and our firm, accumulating experience in over 400 patent cases.With her acute understanding of industry trends and exceptional professional capabilities, she h…

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Shiwen XUE

Ms. XUE has over 10 years of experience in patent prosecution and litigation. Her technical specialty focuses on Chemical Engineering, Biology and Medicine, for example, Pharmaceutical, Molecular Biology, Immunology, Cell and Molecular Biology, Biochemistry, Genetics, Stem Cell, Enzyme and Protein E…

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Jie YAN

Ms. Yan possesses over five years of experience in patent applications across technical fields such as cellular biology, molecular biology, immunology, bioinformatics, biologics and food technology.Ms. Yan is a sought-after strategist for China-focused IP portfolios and foundational medical/biotech …

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Hongmei ZHOU

With 11 years of experience, Ms. Zhou Hongmei specializes in patent prosecution and patent enforcement for pharmaceutical and chemical clients. Her rigorous analysis and strategic insights help clients mitigate infringement risks and secure robust IP protection.

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Han WANG

Current Position: Head of the Legal Department at Zhifan lP Attorneys . Specializes in legal services including patent invalidation and reexamination, intellectual property litigation, infringement analysis, patent prosecution, patent portfolio development, patent enforcement, patent mining, patent m…

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Zezhou ZHANG

Mr. Zhang Zezhou once worked at Sumitomo Chemical Co., Ltd. in Japan for two years and later at the Japanese Department of China Patent Agency (Hong Kong) Co., Ltd. for eight years. He is well-versed in Japanese patent practice and mainly responsible for patent applications, consultations and invalid…

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Fei YUAN

Mr. Yuan Fei accumulated over ten years of experience in the Electrical Department of a renowned domestic international patent firm, providing comprehensive IP legal services to multinational telecommunications equipment manufacturers, telecom operators, mobile device makers, semiconductor equipment …

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Fang MIAO

With over six years of experience as a patent examiner at the China National Intellectual Property Administration (CNIPA), specializing in the field of fluid machinery. Conducted nearly 1,000 patent examinations and was awarded the "Examination Quality Excellence Award." Multiple examinatio…

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Hao DONG

I once worked at the National Intellectual Property Administration on the examination of invention patents in the field of cutting processing. Currently, I am engaged in intellectual property litigation, patent search and analysis, patent invalidation, patent application, etc., at a patent agency and…

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Pei ZHANG

Ms. Zhang Pei has been practicing for over 8 years, specializing in mechanical, chemical, and other technical fields. As a currently licensed patent attorney in China, she has repeatedly provided patent search and analysis, patent invalidation, patent stability analysis, and infringement analysis sol…

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Rong YUAN

Ms. Yuan Rong has 15 years of senior experience in the intellectual property industry. She has held core positions in intellectual property management in several authoritative institutions. With her acute industry insight and outstanding resource integration capabilities, she has successfully led her…

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Yating CHEN

Ms. Chen Yating has 15 years of distinguished experience in trademark and social media marketing.

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Yaru DENG

Ms. Deng has led trademark strategic planning projects for multiple listed companies, earning industry recognition for her expertise in IP strategy development and risk prevention.

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Hongmei LI

With 16 years of experience and over 1,000 trademark/copyright cases handled, Ms. Li has earned widespread acclaim for her professional services and enforcement capabilities.

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Chunhua LIU

Ms. Liu has an outstanding track record in trademark infringement litigation, representing multiple high-profile enforcement cases during her 15-year career.

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Mengqi LIU

Ms. Liu has achieved remarkable results in international trademark registration, successfully leading overseas trademark portfolio projects for numerous enterprises over 10 years.

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Min ZHANG

Ms. Zhang Min has been engaged in the intellectual property industry for 12 years. She has been responsible for intellectual property management in both enterprises and agencies, participated in the management of domestic and international trademarks and standardized intellectual property services fo…

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Jingyi ZHANG

Ms. Zhang Jingyi has 16 years of experience in supply chain intellectual property protection.

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Fang WANG

Ms. Wang Fang brings 14 years of innovative insights and successful cases in trademark and packaging design integration.

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Kevin Cho

Mr. Cao Yongbin graduated from the School of Liberal Arts and Law of Beijing University of Chemical Technology in 2009. He has since held the position of marketing planning specialist in several wholly-owned Korean enterprises, including LG Electronics (China) Co., Ltd. and POSCO (China) Investment C…

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Honors

Honors as milestones, commitment as Compass, we are resolved to defend our clients’ core business and edge in China.

Membership Certificate, China Trademark Association

Member, China Trademark Association

Trusted IP Service Provider (2023-2024) -Skechers China (2024)

Asia IP 2024 Recommended Firm (Mainland China) (2024)

AAAA-Level Patent Agency (Beijing) (2024)

Member, Beijing Agents Association

Beijing Intellectual Property Service Industry Credit Endorsement List (2024)

Outstanding IP Service Team-China IP Magazine (2023)

Excellent Partner (Patent Applications)-SUNGROW (2023)

OPPO Core Team for 5G/AVS Patent Applications/Excellence in Invalidation & Litigation (2021)

Best in Chinese Patent Drafting Quality-SKG（2021）

Tier-A Agency for a Leading Global Internet Company (2024)

Cases & Law

Triumphs We Wear as Armor, Excellence We Forge as Heritage; Law We Worship as King; Legacy We inherit as History.

Our Company Once Again Assists OFILM in Successfully Invalidating All Utility Model Patents of Lingdong Jiaxin

Recently, Zhifan IP Attorneys, Ltd. has once again leveraged its profound professional expertise and rich practical experience to assist its client OFILM in successfully invalidating all utility model patents of Lingdong Jiaxin, thereby removing obstacles to the clients business development.

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Zhifan IP Attorneys has successfully assisted Xian Chuanhua Shengshi Real Estate Development Co., Ltd. in winning a patent administrative infringement dispute case

Zhifan IP Attorneys has successfully assisted Xian Chuanhua Shengshi Real Estate Development Co., Ltd. in winning a patent administrative infringement dispute case.

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Zhifan IP Attorneys Successfully Invalidated All Utility Model Patents of Lingdong Jiaxin on Behalf of OFILM

Recently, Zhifan IP Attorneys, Ltd. has, with its profound professional expertise and extensive practical experience, helped its client OFILM successfully invalidate all utility model patents of Lingdong Jiaxin, removing obstacles to the clients business development.Zhifan IP Attorneys: Professional …

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Zhifan IP Attorneys Helps Skechers China Win Five-Year Patent Litigation

Case OverviewBeijing Zhifan IP Attorneys, Ltd. (Zhifan IP Attorneys) recently assisted Guangzhou Skechers Commercial Co., Ltd. (Skechers China) in winning a patent litigation battle that lasted over five years. After three rounds of hearings at the National Intellectual Property Administration (CNIPA…

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Patent Validity Reversal: Zhifan IP Attorneys Secures Supreme People's Court Support in Second Instance

Recently, the Supreme Peoples Court rendered a final judgment in an administrative dispute case involving the invalidation of a utility model patent right, explicitly reversing the erroneous first-instance judgment and dismissing all the opponents claims. This ruling provides ultimate judicial protec…

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Reply of the Supreme Peoples Court on Issues Concerning the Application of Law in the Trial of Cases Involving Patent Right Evaluation Reports

The Reply of the Supreme Peoples Court on Issues Concerning the Application of Law in the Trial of Cases Involving Patent Right Evaluation Reports (Adopted at the 1953rd session of the Judicial Committee of the Supreme Peoples Court on July 18, 2025, and shall come into force on August 1, 2025) The H…

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Zhifan IP Attorneys Successfully Maintains All Two Design Patents of BAIC Foton

As a professional service institution in the field of intellectual property, Zhifan IP Attorneys has recently successfully represented the client "BAIC Foton" in two design patent invalidation cases, fully demonstrating its strategy formulation ability and professional argumentation strengt…

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Zhifan IP Attorneys Helps Succeed in Patent Invalidation Declaration, Safeguarding Innovation and Fair Competition

On June 10, 2025, the State Intellectual Property Office officially issued the "Invalidation Declaration Request Review Decision" (No. 588201), declaring that the utility model patent right of "vibration motor" with patent number 201720044053.2 is entirely invalid. Behind this dec…

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Zhifan IP Attorneys Successfully Upholds the Validity of the Entire Patent Involved in the Field of Imaging Optics

Recently, China National Intellectual Property Administration issued the examination decision on request for invalidation regarding the patent “Imaging Optical System And Display Apparatus” (Application No.: 202110644041.4) represented by Beijing Zhifan IP Attorneys (hereinafter referred to as “Zh…

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Zhifan IP Attorneys Helps Client Secure Another Victory in Patent Administrative Litigation Against Umicore

Recently, the administrative litigation case involving Umicore’s dispute over the invalidation of an invention patent right filed against China National Intellectual Property Administration has concluded. Zhifan IP Attorneys successfully represented our client and secured another victory in the firs…

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Successfully Wins Core Patent Administrative Lawsuit Against Umicore for Battery Cathode Materials

Recently, in the administrative dispute case of Umicores lawsuit against the State Intellectual Property Office for invalidation of an invention patent right, Zhifan IP Attorneys successfully represented the client and won the first-instance administrative lawsuit. This case involves a dispute over t…

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Zhifan IP Attorneys Wins Administrative Litigation Against Umicore over a Core Patent for Battery Positive Electrode Materials

Recently, in the administrative litigation case involving Umicore’s dispute over the invalidation of an invention patent right filed against China National Intellectual Property Administration, Zhifan IP Attorneys successfully represented our client and won the first-instance administrative litigati…

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Zhifan IP Attorneys Successfully Invalidates the Entire Patent Involved in the Field of Electronic Atomizers

Recently, Zhifan IP Attorneys achieved a complete success in a patent invalidation case involving the electronic atomizer industry. China National Intellectual Property Administration officially issued the examination decision No. 583887 on request for invalidation, declaring that the patent with the…

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Zhifan IP Attorneys Assists Skechers China in Successfully Upholding Patent Rights Through Administrative Enforcement

In an era where intellectual property protection is gaining increasing attention, every enforcement action represents a steadfast defense of innovation. Recently, the internationally renowned footwear brand Skechers China filed 34 administrative enforcement requests with Quanzhou Administration for M…

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Zhifan IP Attorneys Successfully Invalidates the Entire Patent Involved in the Field of Home Appliances

Recently, a patent invalidation case involving the home appliance industry that Zhifan IP Attorneys represented has concluded. China National Intellectual Property Administration issued the examination decision No. 5W135406 on request for invalidation, declaring that the patent with the number “2022…

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Zhifan IP Attorneys Successfully Maintains Full Validity of Patent in the Field of 3D Printing

Recently, a patent invalidation case in the field of 3D printing, which was represented by our firm, has been concluded. China National Intellectual Property Administration issued the examination decision No. 5W134794 on request for invalidation, declaring that the patent with the number “2021225122…

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Zhifan IP Attorneys Maintains Validity of Two Antibody Patents, Assisting the Client in Rights Protection

Recently, China National Intellectual Property Administration issued the examination decisions Nos. 4W117082 and 4W117083 on request for invalidation, declaring that the disputed patents remain valid. The request was adjudicated and concluded on March 29, 2024. We represented the client and achieved …

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Supreme Peoples Court Interpretation on Several Issues Concerning the Application of Law in the Trial of Monopoly Civil Dispute Cases

Law Interpretation No. 6 (2024)Supreme Peoples Court Interpretation on Several Issues Concerning the Application of Law in the Trial of Monopoly Civil Dispute Cases (Passed by the 1915th meeting of the Adjudication Committee of the Supreme Peoples Court on February 4, 2024, effective from July 1, 202…

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Zhifan IP Attorneys Successfully Invalidates the Entire Design Patent Involved in Litigation

On the path of intellectual property protection, Beijing Zhifan IP Attorneys (hereinafter referred to as “Zhifan IP Attorneys”) has always won widespread acclaim in the industry with its professional services and outstanding performance. Recently, Zhifan IP Attorneys once again demonstrated its str…

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Zhifan IP Attorneys Successfully Invalidates Utility Model Patent in Infringement Litigation

Recently, Zhifan IP Attorneys achieved favorable outcomes in both first-instance and second-instance administrative litigations for our client’s patent invalidation case, successfully maintaining the invalidation ruling that declared the patent entirely invalid. This result ensured our client’s exe…

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Zhifan IP Attorneys Secures Key Victory in Invalidation Request for a Large Furniture Manufacturing Group Client

Recently, China National Intellectual Property Administration issued the examination decision No. 5W130190 on request for invalidation, declaring that the disputed patent is entirely invalid. The invalidation request, concluded on May 10, 2023, resulted in a critical victory for our client as the inv…

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Zhifan IP Attorneys Successfully Assists OPPO in Winning the Gold Award for the 21st WIPO-CNIPA Award for Chinese Outstanding Industrial Design

Recently, China National Intellectual Property Administration announced the winners of the 21st WIPO-CNIPA Award, a national-level award of high prestige. Winning this award not only brings a reward of about 2 million yuan but also enhances the company’s influence in the field of intellectual proper…

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The Notice of the CNIPA on Issuing the 14th Five-Year Plan for Intellectual Property Talents

Intellectual Property Administrations of all provinces, autonomous regions, municipalities directly under the Central Government, cities separately listed in the State plan, cities at the deputy provincial level, Xinjiang Production and Construction Corps, Intellectual Property Service and Promotion …

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The Interpretation and Application of the Implement Measures of the Supreme People's Court for Uniform Application of the Law

The Implement Measures of the Supreme Peoples Court for Uniform Application of the Law (hereinafter referred to as the Implement Measures) has been discussed and adopted at the 1845th Session of the Judicial Committee of the Supreme Peoples Court and will come into force on December 1. The background…

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The Implement Measures of the Supreme People's Court for Uniform Application of the Law

In order to further standardize the work of unified application of the law of the Supreme Peoples Court, ensure the unanimous and correct implementation of laws, maintain judicial justice and enhance judicial credibility, these Measures are formulated in light of the actual work of trial execution by…

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Measures for the implementation of the early settlement mechanism for drug patent disputes (For Trial Implementation)

Article 1 These measures are formulated to protect the legitimate rights and interests of drug patentee, to encourage the research of new drug as well as the development of high-quality generic drugs, and to establish an early settlement mechanism for drug patent disputes. Article 2 A platform …

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(Adopted at the Fifteenth Session of the Standing Committee of the Seventh National Peoples Congress on September 7, 1990 and amended for the first time in accordance with the Decision of the 24th Session of the Standing Committee of the Ninth National Peoples Congress Concerning Amendment to the Cop…

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Law of the People’s Republic of China on Lawyers

ContentsChapter I General ProvisionsChapter II Permit for Lawyer PracticeChapter III Law FirmsChapter IV Business, Rights and Obligations of LawyersChapter V Lawyers AssociationsChapter VI Legal LiabilityChapter VII Supplementary Provisions Chapter I General Provisions Article 1 This Law is enacted i…

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Trademark Law of the People's Republic of China (2019 Amendment)

Table of ContentsChapter I General ProvisionsChapter II Application for Trademark RegistrationChapter III Trademark Registration Examination and ApprovalChapter IV Renewal, Modification, Assignment and Licensing of Registered TrademarksChapter V Declaration of Invalidation of Registered TrademarksCha…

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Detailed Rules for the Implementation of the Patent Law of the People's Republic of China (2010 Revision)

Table of ContentsChapter Ⅰ General ProvisionsChapter Ⅱ Application for PatentChapter Ⅲ Examination and Approval of Application for PatentChapter Ⅳ Reexamination of Patent Application and Invalidation of Patent RightChapter Ⅴ Compulsory License for Exploitation of PatentChapter Ⅵ Rewards a…

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Anti-Monopoly Law of the People's Republic of China

Table of Contents Chapter I General ProvisionsChapter II Monopoly AgreementsChapter III Abuse of Dominant Market PositionChapter IV Concentration of Business OperatorsChapter V Abuse of Administrative Power to Eliminate or Restrict CompetitionChapter VI Investigation into Suspicious Monopolistic Cond…

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Zhifan IP Attorneys Assists OPPO in Achieving a Staged Success in Counter-Litigation Against Sharp

Since January 2020, Sharp has initiated several patent infringement litigations against OPPO in locations such as Tokyo, Japan, and Munich, Germany, aiming to capture the market. In response, OPPO took a tough stance. Since February of the same year, OPPO has filed two lawsuits against Sharp in Japan…

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Zhifan IP Attorneys Successfully Assists Easpeed in Maintaining Patent Validity: Air Imaging Holds Great Promise

(1) Case OverviewIn 2016, Han Dongcheng and Fan Chao, who were still postgraduate students at the University of Science and Technology of China (USTC), founded Anhui Easpeed Co., Ltd., which is dedicated to providing “interactive holographic air imaging solutions”.In 2017, with the guidance of thei…

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Patent Law of the People's Republic of China (2020 Amendment)

Table of ContentsChapter I General ProvisionsChapter II Conditions for Granting PatentsChapter III Application for PatentsChapter IV Examination and Approval of Patent ApplicationsChapter V Duration, Termination and Invalidation of PatentsChapter VI Compulsory License for the Exploitation of Patents…