商标符号（™），是用于声明该符号前的标识是一个商标的符号。与用于注册商标后的注册商标符号（®）不同，它通常用于非注册商标。Unicode为“™”（TRADE MARK SIGN，U+2122，HTML：™™），在LaTeX为\texttrademark
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Trademark symbol 商标符号
The trademark symbol (™), in Unicode U+2122™TRADE MARK SIGN (HTML™·™), \texttrademark in LaTeX,
is a symbol used to indicate an assertion that the preceding mark is a trademark. It is usually used for unregistered trademarks, as opposed to the registered trademark symbol (®) which is reserved for registered trademarks.