Restrictions on the use of well-known trademarks include the following aspects: 1. General restrictions: First, there are trademark restrictions. The content of a well-known trademark that has been recognized or recognized is determined and cannot be expanded or changed; secondly, the content of a well-known trademark is determined and cannot be expanded or changed; secondly, the content of a well-known trademark must not be expanded or changed; secondly, there are product or There are restrictions on service items. The relationship between a well-known trademark and the approved goods or services is constant, and the scope of goods or services must not be expanded at will. The third is the time limit. Although the law does not clearly stipulate the protection period for well-known trademarks, well-known trademarks cannot be protected. It should be lifelong, dynamic and changing, and a well-known trademark that requires registration as a prerequisite should still be within the validity period of the registered trademark. 2. Special restrictions: Different from general trademarks, because well-known trademarks are inseparable from the trademark registrant, product quality and reputation, etc., some national laws strictly restrict or even prohibit transfer or licensing. First of all, in accordance with the principle that there is no prohibition in the absence of express provisions in the law and the private nature of trademark rights, law enforcement agencies should not set conditions to restrict or prohibit their transfer or licensing; secondly, for those who abuse the transfer or license rights and ultimately harm the public interest Other relevant laws can be invoked to deal with such behavior; thirdly, for well-known trademarks whose credibility has been significantly weakened due to poor management by the trademark registrant, it is worth encouraging and advocating to transfer the trademark rights and bring their due value into play. Article 11 of the Trademark Law of the People's Republic of China Article 14 of the Trademark Law of the People's Republic of China