(2) No patent right shall be granted for the following: first, scientific discovery; Second, the rules and methods of intellectual activities; Third, the diagnosis and treatment of diseases; Fourth, animal and plant varieties; Fifth, the substance obtained by atom and transformation. The above-mentioned rules and methods of scientific discovery and intellectual activities do not belong to the invention mentioned in the patent law; Patents can be granted for the production methods of animal and plant varieties. No patent right shall be granted for inventions and creations that violate laws, social ethics or hinder public interests.