Is the patent certificate very useful?

Useful, patent right is the exclusive right of the patentee to use his invention and creation, and patent infringement refers to the illegal act of implementing a valid patent protected by law for the purpose of production and operation without the permission of the patentee. Pass off non-patented products as patented products and pass off non-patented methods as patented methods. According to the provisions of Article 59 of the Patent Law, such acts need to bear general civil tort liability, and the administrative department for patent affairs shall order them to make corrections and punish them fairly. Article 11 of the Patent Law 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 its patented products for production and business purposes, nor may it use its patented methods and use, promise to sell, sell or import products directly obtained according to the patented methods.