Legal analysis: 1. Online trademark inquiry system (which is open to the outside world by the State Trademark Office).

2. internal trademark inquiry system (this system is the company's internal trademark inquiry system).

3. Official inquiry (this inquiry refers to submitting the trademark inquiry to the Trademark Office and entrusting the inquiry staff of the Trademark Office to make inquiries).

Legal basis: Article 3 of the Trademark Law of the People's Republic of China

Where a trademark applied for registration does not conform to the relevant provisions of this Law or is the same as or similar to a trademark registered or preliminarily approved by others on the same or similar goods, the Trademark Office will reject the application and will not announce it.

article 31 where two or more applicants for trademark registration apply for registration with the same or similar trademarks on the same commodity or similar commodities, the trademark that applied earlier shall be preliminarily examined and approved and announced; If the application is made on the same day, the earlier trademark shall be preliminarily examined and announced, and the application of others shall be rejected without announcement.