The elements of well-known trademark infringement are: 1. The perpetrator uses the same or similar trademark as the registered trademark on the same or similar goods without the permission of the trademark registrant. 2. The perpetrator has a subjective fault; 3. The fact that it has caused damage to the rights and interests of the trademark registrant; 4. The actor's infringement behavior has a causal relationship with the damage to the rights and interests of the trademark registrant. Article 52 of the Trademark Law stipulates that if an unregistered trademark is used as a registered trademark, or the use of an unregistered trademark violates the provisions of Article 10 of this Law, the local industrial and commercial administrative department shall stop it, make corrections within a time limit, and may impose a fine According to the notice, if the illegal business volume exceeds 50,000 yuan, a fine of not more than 20% of the illegal business volume may be imposed. If there is no illegal business volume or the illegal business volume is less than 50,000 yuan, a fine of not more than 10,000 yuan may be imposed.