Go to the official website of the Trademark Office to inquire, which is the official website of the "Trademark Office of the State Administration for Industry and Commerce". There is a trademark inquiry in the navigation menu. You can inquire according to the trademark category, name, registration number, etc. you want to inquire. After querying, you can see the corresponding legal status of the trademark, and naturally you will know whether the trademark you want to query has any transfer information!