China Patent Agent (HK) Ltd

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 560 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&A
  • 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

Contact details

China Patent Agent (HK) Ltd
22/F Great Eagle Centre
23 Harbour Road
Wan Chai
Hong Kong

Professional contacts

Other offices

  • Beijing
  • Munich
  • New York
  • Shanghai
  • Shenzhen
  • Tokyo

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