Legal analysis: To identify a well-known trademark, the following conditions must be met: 1. It should be well-known to the relevant public; 2. It should have a record of being protected as a well-known trademark; 3. Any publicity work for the trademark The duration, extent and geographical scope meet the standards for the recognition of well-known trademarks; 4. Other conditions.

Legal basis: Article 13 of the "Trademark Law of the People's Republic of China" If a trademark is well-known to the relevant public, if the holder believes that its rights have been infringed, it may request to be well-known in accordance with the provisions of this law. Trademark protection. If a trademark applied for registration on the same or similar goods is a copy, imitation or translation of someone else's well-known trademark that has not been registered in China and is likely to cause confusion, it will not be registered and its use will be prohibited. If a trademark applied for registration for different or dissimilar goods is a copy, imitation or translation of someone else's well-known trademark that has been registered in China, misleading the public and causing the interests of the well-known trademark registrant to be harmed, registration will not be granted and use will be prohibited.

Article 14 Well-known trademarks shall be determined at the request of the parties as facts that need to be determined in handling trademark cases. The following factors should be considered when determining a well-known trademark: (1) The degree of awareness of the trademark by the relevant public; (2) The duration of use of the trademark; (3) The duration, extent and geographical scope of any publicity work for the trademark; (4) ) Records that the trademark is protected as a well-known trademark; (5) Other factors that make the trademark famous. During the review of trademark registration and the investigation and handling of trademark violation cases by the industrial and commercial administrative departments, if the parties claim rights in accordance with Article 13 of this Law, the Trademark Office may determine the well-known status of the trademark based on the needs of reviewing and handling the case. During the handling of trademark disputes, if a party claims rights in accordance with Article 13 of this Law, the Trademark Review and Adjudication Board may determine the well-known status of the trademark based on the needs of handling the case. During the trial of trademark civil or administrative cases, if a party claims rights in accordance with Article 13 of this Law, the people's court designated by the Supreme People's Court may determine the well-known status of the trademark based on the needs of hearing the case. Producers and operators are not allowed to use the words "well-known trademark" on commodities, commodity packaging or containers, or in advertising, exhibitions and other commercial activities.