We often see the TM, R or C logo in the upper right corner of a trademark. What do these logos represent?

TM mark (?)

TM is the abbreviation of trademark, which generally refers to a trademark for which a trademark application has been submitted but is in the trademark review stage.

This means that the trademark has been applied to the State Trademark Office and has received the "Notice of Acceptance" issued by the State Trademark Office. The existing trademark holder has the priority to use the trademark, but The trademark is still pending.

R mark (?)

R is the abbreviation of registered, which means that the trademark has been reviewed and approved by the National Trademark Office and has become a registered trademark.

Generally, there is a ? mark, which indicates that the product is protected by law and cannot be used by any company without the authorization of the holder.

C mark (?)

C is the abbreviation of copyright. It is a copyright mark, also known as a copyright mark, which means that the work is protected by copyright.