For example, the patent right granted by China Patent Office or the exclusive right to use a trademark approved by China Trademark Office can only be protected in China, but not in other countries. Foreigners using invention patents authorized by China Patent Office outside China shall not infringe the patent right of China. Therefore, inventions made by China citizens and legal persons must apply for patents in foreign countries if they want to be protected in foreign countries. Or vice versa, Dallas goes to the auditorium, which is one of the principles stipulated in the Paris Convention for the Protection of Industrial Property.