First, scientific discovery;
Second, the rules and methods of intellectual activities;
Third, the diagnosis and treatment of diseases;
Fourth, animal and plant varieties;
5. Substances obtained by nuclear transformation.
Legal basis: Article 25 of the Patent Law of People's Republic of China (PRC) does not grant patent right to the following items:
(1) scientific discoveries;
(2) rules and methods of intellectual activities;
(3) Methods of diagnosis and treatment of diseases;
(4) Species of animals and plants;
(5) Nuclear transformation methods and substances obtained by nuclear transformation methods;
(six) the design of the pattern, color or the combination of the two.