Legal basis: People's Republic of China (PRC) Patent Law.
Article 10 The term of the invention patent right is 20 years, and the term of the utility model patent right and the design patent right is 10 years, counting from the date of application.
Article 11 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.