1. Search directly through the trademark registration certificate issued by the Trademark Office. There is a number in the upper right corner of the trademark registration certificate. This number is the trademark application number and registration number.

2. Log in to the website of the Trademark Office of the State Administration for Industry and Commerce of the People's Republic of China and enter the trademark query interface to query. Follow the relevant text prompts and enter the registration number. Generally, trademark applicants with registration numbers can choose comprehensive query or status query to view trademark information.

3. You can go directly to the Trademark Office to submit a trademark search application and pay the trademark search fee before conducting the search.

4. You can also entrust a regular trademark agency registered with the National Trademark Office to query the trademark registration number. At the same time, just pay the corresponding inquiry fee.

According to Article 3 of the Trademark Law of the People's Republic of China, trademarks approved and registered by the Trademark Office are registered trademarks, including commodity trademarks, service trademarks, collective trademarks, and certification marks; the trademark registrant Enjoy exclusive rights to trademarks and are protected by law.