Legal analysis: follow the following principles: First, the principle of good faith. Following the principle of good faith is the need to determine whether the exercise of trademark rights and trade name rights constitutes unfair competition, and it is the basis and soul to guide the handling of cases. Second, the principle of protecting prior rights. Carry out the principle of rights first, and the establishment and exercise of rights formed after the request shall not infringe on the legal civil rights that have been formed before others. Third, the principle of prohibiting confusion.

Legal basis: Article 64 of the Trademark Law of People's Republic of China (PRC) * * * Where the exclusive right holder of a registered trademark claims compensation, and the accused infringer makes a defense on the grounds that the exclusive right holder of a registered trademark has not used the registered trademark, the people's court may require the exclusive right holder of a registered trademark to provide evidence of the actual use of the registered trademark in the previous three years. If the exclusive right holder of a registered trademark cannot prove that the registered trademark has been actually used in the first three years, nor can he prove that he has suffered other losses due to infringement, the accused infringer shall not be liable for compensation.