China Science Patent Trademark Agents Ltd. (CSPTAL) is one of the leading and largest IP firm in China. Founded in 1984, the firm is recognized for its quality services covering all the aspect of IP practices, especially for its technical competence and international experiences. The firm enjoys its long-term business relation with clients and associates all over the globe. 
Undergoing a steady boom of the business in the past 15 years, CSPTAL is persistent in the commitment to its values of Reliability, Integrity, Quality and Efficiency!

Our patent service covers all technical
fields including electrical engineering,
mechanical engineering, chemical engineering,
and biotechnology:

- Drafting and prosecution of patent

  applications
- Reexamination, invalidation and appeals
- Judicial and administrative litigations
- Counseling on corporate IP management
- Opinions on infringement and/or invalidity
- Patent search and patent watch
- Technology licensing and transfer

Our trademark and other service includes:

- Registration, renewal,

  assignment, and licensing of

  trademarks
- Reexamination, cancellation,

  opposition, disputes and

  administrative litigations of

  trademarks
- Infringement litigations and

  administrative enforcement of

  trademarks
- Copyright litigations and

  registration of software

  copyrights
- Enforcement of IP rights at

  Customs
- Protection of domain names