China Patent Agent (HK)


22/F., Great Eagle Center, 23 Harbour Road
Hong Kong SAR

Tel:(852) 2828 4688
Fax:(852) 2827 1018

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China Patent Agent (H.K.) Ltd. was incorporated in 1984, accompanying the launch of the Chinese Patent Law. It is one of the first three pioneer IP firms in China. Besides our Hong Kong-based main office, we also have offices in Beijing, Shenzhen, Shanghai, New York, Tokyo and Munich, forming a global network to provide around-the-clock quality IP services to our clients.

Our strength in IP practice lies in the powerful teamwork of our professionals, who have extensive practical experience, solid technical and academic backgrounds, IP knowledge and industrial experience, and proficiency in various working languages.  As a leading IP firm in China, we currently have 560 staff, including 230 patent attorneys, 34 trademark attorneys and 85 attorneys-at-law. All of our IP practitioners are graduates from eminent Chinese or overseas universities and holders of academic degrees in science, engineering, law or language, and most of them have reinforced their expertise through in-service training or overseas internship. Our professionals are thoroughly conversant with the IP practice of mainland China and Hong Kong SAR, knowledgeable about IP-related laws and practices in the United States, Europe and Japan, and proficient in multiple languages, such as Chinese, English, German, French, Japanese, Korean and Cantonese. 

We have devoted actively to the timely dissemination of China's latest IP developments via various channels, such as newsletters, corporate website, and bilingual quarterly China Patents & Trademarks.

Ever since our establishments, we have kept on striving to serve our clients with high degree of professionalism and integrity, in adherence to its philosophy of full commitment to the protection of our clients’ IP rights. The trust and confidence from our clients have also been a strong impetus for us to exert our upmost to provide even better services. In the days to come, we look forward to extending quality services to you, so that your IP interests will be protected and your prosperous presence in the vast market of China securely anchored.

Our services include but not limited to the following aspects:

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 mergers and acquisitions
  • Comprehensive patent-related management consultation (e.g., 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

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


 Last updated 16 July 2021