"TM" is the abbreviation of "trademark" in English, and "?" is the abbreviation of "register" in English. "TM" and "?" both serve as reminders. They usually appear in the upper right corner or lower right corner of some signs. "TM" indicates that the mark is used as a trademark, while "?" indicates that the mark has been registered. Trademark, enjoy exclusive rights to trademark.

Some people pointed out that "TM" means that the trademark has been applied to the State Trademark Office, and the State Trademark Office has also issued a "Trademark Registration Acceptance Notice", that is, the "Trademark Registration Acceptance Notice" 》 is the prerequisite for using the "TM" logo. In fact, it is not the case: Our country’s laws have clear regulations on the use of ?, but there are no regulations on the use and management of TM. As long as the operator wants to inform others that a certain mark is used as a trademark, regardless of whether the mark applies for trademark registration, it will "TM" can be used.