r in the upper right corner of a trademark is the symbol of a registered trademark, and r 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. TM is the abbreviation of English trademark, which means that the trademark has been applied to the State Trademark Office, and the State Trademark Office has also issued the Notice of Acceptance, which can prevent others from filing repeated applications, and also means that the existing trademark holders have the priority to use it.