According to relevant legal provisions, the relevant contents of applying for a well-known trademark are as follows:

1. Apply to the industrial and commercial department for recognition of a well-known trademark. After review by the industrial and commercial departments of the province, autonomous region, and municipality directly under the Central Government, the application will be reported to the Trademark Office step by step, and the Trademark Office will make a determination.

2. Apply to the People’s Court for recognition. When hearing trademark dispute cases, the People's Court may, based on the request of the parties and the specific circumstances of the case, determine whether the registered trademark involved is well-known in accordance with the law. Moreover, if the right holder of a well-known trademark has objections to the determination of the Trademark Office or the Trademark Review and Adjudication Board, he or she may also request judicial review from the People's Court.

3. Apply to the Trademark Review and Adjudication Board for recognition. When a dispute arises during the registration, use and review process of a trademark, the Trademark Review and Adjudication Board may, at the request of the party concerned, determine whether the trademark constitutes a well-known trademark based on specific facts.

Legal basis:

"Trademark Law of the People's Republic of China" Article 14 Well-known trademarks shall be used as facts that need to be determined in handling trademark cases at the request of the parties. identified. The following factors should be considered in 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) The record of the trademark being protected as a well-known trademark;

(5) The Other factors that make a trademark famous.