What main evidence should the plaintiff in a patent infringement case provide?

The plaintiff in a patent infringement case shall provide the following main evidence:

1. Relevant certificates of patent right. Such as patent application, patent certificate, my identity certificate, etc. ;

Second, the evidence of infringement. For example, before and after the infringement, the order comparison ratio between the two parties, the image, video and composition ratio of the infringing products, etc. ;

3. Other main evidences that the plaintiff should provide in patent infringement cases.

legal ground

Article 11 of the Patent Law of People's Republic of China (PRC) shall come into force on June 1 20265438.

After the patent right for invention and utility model is granted, except as otherwise provided in this Law, no unit or individual may exploit the patent without the permission of the patentee, that is, it may not manufacture, use, promise to sell, sell or import the patented product for production and business purposes, nor may it use the patented method and use, promise to sell, sell or import the product directly obtained according to the patented method.

After the design patent is granted, no unit or individual may exploit its patent without the permission of the patentee, that is, it may not manufacture, promise to sell, sell or import its patented product for production and business purposes.