"TM" is common in foreign trademarks. It is the abbreviation of "trade mark" in English, which means "commercial mark" in Chinese, so "TM" means "trademark". Its function is to tell people that the graphic or text it marks is the trademark of this commodity or service, but it is still in the acceptance period and is not protected by law.

In China, "TM" is generally understood as the use of the "TM" logo during the period from acceptance to authorization, and the R logo can be used when the registration application is successful.