Legal analysis: one of the following acts is an infringement of the exclusive right to use a registered trademark: (1) using a trademark that is the same as or similar to its registered trademark on the same commodity or similar commodity without the permission of the trademark registrant; (2) selling goods that infringe upon the exclusive right to use a registered trademark; (3) Forging or unauthorized manufacturing of registered trademark marks of others or selling forged or unauthorized registered trademark marks; (four) without the consent of the trademark registrant, the registered trademark is changed and the goods with the changed trademark are put on the market again; (5) causing other damage to the exclusive right to use a registered trademark of others.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 120 Where the civil rights and interests are infringed, the infringed has the right to request the infringer to bear the tort liability.

Article 183 Where an infringer damages himself by defending the civil rights and interests of others, he shall bear civil liability and the beneficiary may give him appropriate compensation. If no infringer or infringer escapes or is unable to bear civil liability, and the victim requests compensation, the beneficiary shall give appropriate compensation.

Article 167 Where an infringement endangers the personal and property safety of others, the infringed party has the right to demand the infringer to bear the tort liability of stopping the infringement, removing the obstruction and eliminating the danger.

Article 168 Where two or more persons jointly infringe and cause damage to others, they shall be jointly and severally liable.