It depends on whether the method can solve practical problems. If the rules and methods are purely intellectual activities, they cannot be patented
Article 5 of the Patent Law stipulates:
Patent rights will not be granted for inventions and creations that violate the law, social ethics or harm the interests of the public.
Patent rights will not be granted for inventions and creations that are obtained or utilized in violation of laws and administrative regulations and relied on such genetic resources.
Article 25 of the Patent Law stipulates: No patent rights shall be granted for the following items:
(1) Scientific discoveries;
(2) Intellectual activities Rules and methods;
(3) Diagnosis and treatment methods of diseases;
(4) Animal and plant species;
(5) Nucleus transformation method Obtained substances;
(6) Designs made on the patterns, colors, or a combination of the two of flat printed materials that mainly serve as a mark.
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.