circled r is the mark of "registered trademark", which means that the trademark has been applied for registration in the State Trademark Office and passed the examination by the Trademark Office, and has become a registered trademark. R in the circle is the initial letter of English register registration. A registered trademark has the characteristics of exclusiveness, exclusiveness and uniqueness. It belongs to the owner of the registered trademark and is protected by law. No enterprise or individual may use it without the permission or authorization of the owner of the registered trademark, otherwise it will bear the tort liability. Using TM means trademark symbol, that is, the words, graphics or symbols marked with TM are trademarks, but they are not necessarily registered (unregistered ones are not protected by law). TM is the abbreviation of English trademark. In China, TM on a trademark also has its special meaning. In fact, TM logo does not protect the trademark. It is different from R. TM means that the trademark has been applied to the State Trademark Office, and the State Trademark Office has also issued a Notice of Acceptance, which has entered an objection period, thus preventing others from filing repeated applications, and also indicating that existing trademark holders have the priority to use it.