Article 70 Anyone who uses, promises to sell or sells an infringing patented product for the purpose of production and operation without knowing that it was manufactured and sold without the permission of the patentee shall not be liable for compensation if he can prove the legal source of the product.
Article 65 The amount of compensation for patent infringement shall be determined according to the actual losses suffered by the obligee due to the infringement; If the actual loss is difficult to determine, it can be determined according to the interests obtained by the infringer due to infringement. If it is difficult to determine the loss of the obligee or the interests of the infringer, it shall be reasonably determined by reference to the multiple of the patent license fee. The amount of compensation shall also include the reasonable expenses paid by the obligee to stop the infringement.
If it is difficult to determine the loss of the obligee, the benefits obtained by the infringer and the patent license fee, the people's court may determine the compensation of more than 1 10,000 yuan and less than1100,000 yuan according to the type of patent right, the nature and circumstances of the infringement.