Headquarters in Guangzhou, the rooted Zhongshan, professional and assurance! ! Division I, Guangdong Province, one of the most well-known intellectual property agency - Guangzhou, Guangdong, Patent and Trademark Agency Ltd. established to better serve the old and new customers of Zhongshan and Zhuhai, uphold the company "good faith, dedicated professional," the highest the purpose of serving our customers! website: www.zsyuegao.com, telephone 0760 -88,363,611 Mobile: 13543806125, Contact: Lin-sheng, consulting QQ: 287 118 829. Patent Services, invention, utility model foreign patent applications (including the application documents to write, translate, modify); 2 PCT international application, PCT national phase entry application; patent reexamination request; 4, a request for invalidation ; 5, the patent information retrieval; the 6 patent license; 7, patent law status monitoring; 8, patents (including the right to apply) for sale; payment of patent annual fee and an annual fee monitoring and management service.