The reason why TM and R are used in trademark registration is to identify the registration status and use of the trademark.

The TM symbol indicates that the trademark has applied for registration to the Trademark Office, but has not yet obtained the registration certificate and is in the status of application. The use of the TM symbol can tell the public that the trademark is owned and prevent others from misusing or preemptively registering the trademark. It also helps the trademark applicant obtain the right to use the trademark beforehand.

The R symbol means that the trademark has obtained a registration certificate and the trademark ownership is protected by law. The use of the R symbol indicates that the trademark has been registered and enjoys exclusive rights. Other unauthorized organizations and individuals are not allowed to use the trademark. At the same time, using the R symbol will also help improve the visibility and credibility of the trademark, and increase consumers' trust and recognition of the product.

Therefore, using the TM and R symbols in trademark registration can clarify the ownership and use of the trademark, protect the legitimate rights and interests of the trademark owner, and also help improve the visibility and credibility of the trademark.

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