Open 360 browser and search the official website of "China Trademark Network". 2. Enter the official website and click "Trademark Search". 3. Trademark query instructions, click "I accept". 4. Enter the query and click "Trademark Comprehensive Query". 5. Enter the trademark registration number, name, etc., and click "Search". 6. As a result of the query, you can view the electronic version of the trademark registration certificate.