Article 25 No patent rights shall be granted for the following items:
(1) Scientific discoveries;
(2) Rules and regulations of intellectual activities Methods;
(3) Diagnosis and treatment methods of diseases;
(4) Animal and plant species;
(5) Obtained by nuclear transformation method Substance;
(6) Designs made on the patterns, colors, or a combination of the two on flat printed matter that serve primarily as a logo.
Patent rights may be granted in accordance with the provisions of this Law for the production methods of the products listed in item (4) of the preceding paragraph.
The above content is excerpted from the "Patent Law of the People's Republic of China (2008 Amendment)"