1. Using a trademark identical with or similar to its registered trademark on the same or similar goods without the permission of the trademark registrant; 2. Selling goods that infringe the exclusive right to use a registered trademark; 3. Forging or manufacturing others' registered trademarks without authorization or selling forged or manufactured registered trademarks without authorization; 4, without the consent of the trademark registrant, change its registered trademark and put the goods with the changed trademark on the market again; 5, causing other damage to the exclusive right to use a registered trademark of others; Regional trademark protection. Trademarks not registered in Hong Kong, Macao and Taiwan but registered in Chinese mainland can only be protected if they can be recognized as well-known trademarks locally. Otherwise, according to the principle of first registration, whoever registers first will be protected.

legal ground

trademark act

Article 22 An applicant for trademark registration shall fill in the category and name of the goods using the trademark in accordance with the prescribed commodity classification table and apply for registration. An applicant for trademark registration may apply for the registration of the same trademark for many kinds of goods through one application. Applications for trademark registration and other relevant documents may be submitted in written form or in the form of data messages. Article 23 Where a registered trademark needs to obtain the exclusive right to use a trademark on goods outside the approved scope of use, a separate application for registration shall be filed.