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.