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 20 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 2015-1-4 IPR courts established in Guangzhou and Shanghai 2014-10-9 Mr. Masashi Kurose visits CSPTAL 2014-5-12 IP Proctection by Chinese Courts in 2013 more>> 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 Legal Notice | Site Map Copyright © 2013,China Science Patent & Trademark Agent Ltd