Hello! TM is the abbreviation of English trademark, and TM on the trademark has its special meaning. In fact, TM logo does not protect trademarks. Different from R. TM, it means that the trademark has been applied to the State Trademark Office, and the State Trademark Office has issued a notice of acceptance, which has entered an objection period to prevent others from applying repeatedly, which also means that the existing trademark holders have the priority to use it. Circle R is the mark of "registered trademark", which means that the trademark has applied for registration in the State Trademark Office and passed the examination of the Trademark Office, and has become a registered trademark. R in the circle is the initial letter of English register registration. Registered trademarks have the characteristics of exclusiveness, exclusiveness and uniqueness. It belongs to the registered trademark owner and is protected by law. Without the permission or authorization of the registered trademark owner, no enterprise or individual may use it, otherwise it will bear tort liability. The use of TM is a trademark symbol, that is, words, graphics or symbols marked with TM are trademarks, but they are not necessarily registered (unregistered ones are not protected by law).