No patent right shall be granted for: (1) scientific discoveries; （2） Rules and methods of intellectual activities; （3） Diagnosis and treatment of diseases; （4） Animal and plant varieties; （5） Substances obtained by nuclear transformation; （6） A design that mainly serves as a logo for the pattern, color or combination of the two of print.
Legal basis:
Article 25 of the Patent Law of the People's Republic of China does not grant patent rights for the following:
（1） Scientific discovery;
（2） Rules and methods of intellectual activities;
（3） Diagnosis and treatment of diseases;
（4） Animal and plant varieties;
（5） Nuclear transformation method and substances obtained by nuclear transformation method;
（6） A design that mainly serves as a logo for the pattern, color or combination of the two of print.
A patent right may be granted in accordance with the provisions of this Law for the production process of the products listed in Item (4) of the preceding paragraph.
