Legal analysis: The differences between a trademark registration certificate and a trademark authorization letter are as follows: 1. A trademark authorization letter, also known as a trademark license, means that the trademark registrant authorizes others to use his registered trademark by signing a trademark use authorization contract. ; 2. Trademark registration certificate. After receiving the acceptance notice, the Trademark Office will conduct a substantive review of the registration application. After passing the substantive examination, the announcement process will begin. If no objection is raised after the announcement period expires, the registration certificate can be obtained. Indicates that the trademark application was successful and the trademark rights were obtained.

Legal basis: Article 15 of the Trademark Law of the People's Republic of China. Without authorization, an agent or representative shall register the trademark of the principal or represented person in his or her own name. , if the agent or represented person raises objections, registration will not be granted and use will be prohibited. A trademark applied for registration for the same kind of goods or similar goods is identical or similar to an unregistered trademark previously used by another person, and the applicant has a contract, business relationship or other relationship with the other person other than those specified in the preceding paragraph and is fully aware of the existence of the other person's trademark. If the other person raises objections, the registration will not be granted.