On July 8, sponsored by Chengdu Patent Office of the SIPO, Chengdu High-tech Zone Science and Technology and Talents Office, co-hosted by Chengdu High-tech Zone IP Service Alliance and Unitalen, the "Madrid System Practice Training Course Involving IP Litigation and International Protection" was successfully held in Chengdu High-tech Zone. The training focused on hot issues such as special protection of well-known trademarks, introduction of foreign-related trademark in Madrid and the other Trademark registration systems, aiming to help businesses understand domestic and international trademark determination, IP litigation and other practices, and improve the corporate IP protection system. More than 70 well-known companies in Chengdu High-tech Zone participated in the training.