Legal analysis: The definition of trademark use refers to trademarks used in commodities, commodity packaging, containers, commodity transaction certificates, as well as trademarks used in commercial activities such as advertising and exhibitions. The use of trademarks must be reasonable and legal. If you want to use someone else's legal trademark, you must sign a trademark authorization form to obtain the right to use the trademark. No one is allowed to use other people's legal trademarks without authorization, which constitutes infringement.

Legal basis: Article 48 of the Trademark Law of the People's Republic of China: Provisions on the use of trademarks: refers to the use of trademarks on commodities, commodity packaging or containers, and commodity transaction documents or use trademarks in advertising, exhibitions, and other commercial activities to identify the source of goods. In practice, the use in the sense of a trademark can be determined from two aspects: the purpose of use and the method of use.