TM is the abbreviation of trademark. American trademarks are usually marked with TM, which does not necessarily refer to registered trademarks. The circle R is the abbreviation of REGISTER, which means registered trademark when used for trademark. China's "Regulations on the Implementation of the Trademark Law" stipulates that the use of registered trademarks can indicate "registered trademarks" or registered marks on commodities, commodity packages, manuals or other accessories. The registration mark includes the circle R, and the use of the registration mark should be marked in the upper right corner or the lower right corner of the trademark. So TM and R are trademarks of different countries and have no special relationship. Some domestic companies do not understand the legal provisions, blindly imitate American companies, and use TM marks on trademarks. Relevant personnel of "People's Republic of China (PRC) and China National Intellectual Property Administration" explained that TM is the copyright mark used during trademark registration and examination, while circle R is the copyright mark that can only be used after the examination period.