Legal basis
Article 25 of the Patent Law of the People's Republic of China does not grant a patent right for the following items: (1) Scientific discovery; (2) Rules and methods of intellectual activities; (3) Methods of diagnosis and treatment of diseases; (4) Species of animals and plants; (5) substances obtained by nuclear transformation; (six) the design of the pattern, color or the combination of the two of the plane printed matter. A patent right may be granted to the production method of the products listed in Item (4) of the preceding paragraph in accordance with the provisions of this Law.