TM after Coca-Cola is the abbreviation of TRADEMARK. American trademarks are usually marked with TM, which does not necessarily refer to registered trademarks. In China, it only means that an application for trademark registration has been filed, but the trademark registration certificate has not been obtained, and R is the abbreviation of REGISTER, which means registered trademark when used in trademarks. According to the regulations for the implementation of China's trademark law, the use of registered trademarks can indicate "registered trademark" or registration marks on commodities, commodity packages, instructions or other attachments. Registration marks include (note plus ) and (r plus ). The use of registration marks shall be marked in the upper right corner or the lower right corner of the trademark. Therefore, TM and R are trademarks of different countries, and there is no special relationship. Some domestic companies do not understand the legal provisions and blindly imitate American companies and use TM marks on trademarks. At present, many pharmaceutical companies use TM trademark to mislead consumers, so it is best to look for R mark when buying drugs. In recent years, some enterprises have publicized their TM(TradeMark) trademarks in drug advertisements, and some provincial (autonomous regions and municipalities) drug regulatory authorities have approved such advertisements promoting TM trademarks and filed them with the national drug regulatory authorities. But recently, the reporter learned from the relevant departments that the packaging, labels and instructions of drugs with TM logo trademarks are no longer filed.