China Patent Agent (HK) Ltd

IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Gold - Firms: prosecution

Silver - Firms: litigation

Among the first three pioneering prosecution shops in China, CPA’s Beijing-Hong Kong twin engine has been receiving effusive praise for its patent offering: “I am really impressed by their attention to detail, problem-solving mentality, excellent grasp of complex technical and patent issues and fabulous skills in presenting the complex legal and technical matters to the judge or re-examination panels in a concise and clear way.” Deputy general manager Shaohui Yuan anchors the 230-strong patent prosecution team with aplomb. Drawing on his valuable training in Germany, he is adept at machinery processing and auto engineering drafting. Working closely with him on the prosecution front are Songqing Zou and Chunyuan Liu. Previously a research and development engineer at China Aerospace Science and Technology Corporation, Zou is notable for his work in the mechanical engineering field. Germany-trained patent attorney Liu has recently succeeded in securing a re-examination decision on behalf of Continental Automotive before the CNIPA. Over in the litigation department, Yanfeng Xiong has unrivalled insight into standard essential patent (SEP) litigation and invalidation proceedings in the telecommunication field. He attracts rave reviews from his patrons: “Yanfeng is really one of the most devoted IP professionals I’ve worked ever with. He can delve very deep into the legal and technical matters of the case and then come up with practical and clear strategies which help to shape the course of the cases. He is considered the game changer in some cases. With this, he is definitely one of the best patent attorneys in China I would like to recommend.” Another enthusiastic patron would describe him as “one of the best patent attorneys on Chinese soil”. Yuhe Wu is another sterling litigator – he brings a background in biotech to bear on business-critical patent clashes. The pair is joined by litigators Chunlong Tang and Liang Wang. Several of Tang’s winning cases have been recognised by the Supreme People’s Court, the Beijing High Court and the Beijing IP Court as their annual top 10 cases; while China-New York dual-qualified Wang has routinely brought home the wins in court with high-stakes patent infringement litigation, patent invalidation and trade secret litigation matters.

Firm Profile

China Patent Agent (HK) Ltd (CPA), incorporated in 1984, is one of the first three pioneer IP firms in China. CPA has offices in Hong Kong, Beijing, Shenzhen and Shanghai, and overseas offices in New York, Tokyo and Munich, forming a global network to provide around-the-clock quality IP services to its clients worldwide.

CPA provides comprehensive IP services to its clients in China and abroad, with particular expertise in application preparation, prosecution, litigation, mediation, licensing, assignment and counselling in relation to patents, trademarks, copyright, domain names, anti-unfair competition and other IP-related areas. It also prosecutes patent, trademark and design applications for clients in the Hong Kong Special Administrative Region.

As a leading IP firm in China, CPA has 550 staff, including 230 patent attorneys, 34 trademark attorneys and 85 attorneys at law. Its strength in IP practice lies in the powerful teamwork of its professionals, stemming from their extensive practical experience, solid technical and academic backgrounds, IP knowledge and industrial experience, and proficiency in various working languages.

Guided by the philosophy of total commitment to the protection of clients’ IP rights, CPA strives to achieve the highest standards of professionalism and integrity. All staff members at CPA appreciate the trust put in them by clients and reach out to provide trustworthy and comprehensive services in an efficient manner. It will be CPA’s honour to continue giving clients this assurance of quality service in the future.

Patent services

  • Prior art search and patentability study
  • Drafting and prosecution of patent applications
  • Patent re-examination and invalidation
  • Patent infringement litigation, administrative resolution and customs protection
  • Patent customs recordal prosecution
  • Patent search and watch, patent infringement assessment and due diligence investigations for M&As
  • Comprehensive patent-related management consultation (eg, portfolio and annuity management, patent strategy)
  • Patent licensing and technology transfer

Trademark services

  • General trademark-related consultation
  • Pre-application search and registrability study
  • Trademark enquiry, monitoring and advertising
  • Trademark registration and renewal prosecution
  • Trademark opposition, review/adjudication and administrative litigation
  • Trademark licensing and assignment
  • Trademark infringement litigation, administrative investigation and treatment, and related legal services
  • Trademark customs recordal prosecution
  • Trademark and brand strategy consultation

Enforcement and other legal affairs

  • Counselling in administrative proceedings, administrative and civil litigation and IP rights affirmation
  • Mediation of IP disputes
  • Drafting or review of agreements/contracts in IP trade and licensing
  • Legal opinions, business negotiation and arbitration representation, corporate IP rights management services and IP strategy preparation
  • Legal services for interested parties to patent dispute and infringement cases, including counselling, investigation, evidence collection, filing administrative adjudication requests and instituting infringement litigation
  • Lawsuits directed to patent re-examination and patent invalidation decisions
  • Trademark opposition, review/adjudication, dispute determination and administrative litigation
  • Trademark infringement litigation, administrative investigation/resolution and related legal matters
  • IP due diligence
  • Patent and trademark customs recordal prosecution
  • IP-related counselling, search and watch services

Tech trade services

  • Counselling on technical, legal and trade matters in tech trade transactions
  • Negotiation and conclusion of tech trade contracts

Copyright and computer software services

  • Copyright and computer software registration prosecution
  • Negotiation and conclusion of copyright licence and assignment contracts
  • Copyright infringement litigation and related legal matters
  • Copyright customs recordal prosecution

Anti-unfair competition and trade secret protection

  • Counselling on unfair competition and trade secret protection
  • Infringement litigation and related legal matters

Miscellaneous legal services

  • Domain name registration
  • Registration of integrated circuit layout designs
  • Other IP-related legal matters
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