Legal analysis: The methods for identifying well-known trademarks in China: 1. The identification of well-known trademarks through the Trademark Office and the Trademark Assessment Board is the administrative identification method; 2. The identification of well-known trademarks through court judgments is judicial identification method. Requirements for recognition: 1. The relevant public’s awareness of the trademark; 2. The duration of use of the trademark; etc.

Legal basis: "Trademark Law of the People's Republic of China" Article 14 Well-known trademarks shall be recognized as facts that need to be determined in handling trademark cases at the request of the parties. 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 shall not use the words "well-known trademark" on commodities, commodity packaging or containers, or in advertising, exhibitions and other commercial activities.