1. Log in to official website, China National Intellectual Property Administration, and enter the information such as trademark name, registration number and query time on the query page, and you can query the trademark revocation information, including the applicant information.
2. Consult relevant law firms, who can provide trademark revocation inquiry service.
3. Entrust a trademark agency to inquire. Trademark agency is a professional trademark service company, which can provide one-stop services such as trademark registration and trademark inquiry.
Please note that the above method may require a certain fee, and basic information such as trademark name and registration number should be provided. If none of the above methods can obtain information, it is recommended to consult professionals or relevant institutions.