TM" is commonly seen in foreign trademarks. It is the abbreviation of the English "trade mark". The Chinese meaning of "trade mark" is "commercial mark", so "TM" means "trademark". Its Its function is to tell people that the graphic or text marked on it is a trademark of the product or service, not a name or an advertisement. This can prevent the graphic or text marked from flowing into the public domain and being unable to apply to become a registered trademark. Enjoy exclusive rights; at the same time, the "TM" mark can also be used as proof of using the graphic or text as a trademark. When applying for a registered trademark, you have the right to use it first.