(2) inventions that violate scientific laws. For example, a perpetual motion machine does not conform to the law of conservation of energy and cannot be patented.
(3) scientific discovery. For example, an astronomer discovered a new star through observation; Newton's discovery of the law of universal gravitation and so on all belong to the objective existence of nature and cannot be patented.
(4) Rules and methods of intellectual activities. For example, a new way of playing cards or some kind of chess.
(5) Diagnosis and treatment of diseases. For example, an old Chinese doctor can diagnose some diseases that are difficult to diagnose through special pulse-taking, and treat them with acupuncture and special acupoint massage therapy. You cannot apply for a patent, but you can apply for a patent for mass-produced drugs, devices and their preparation methods for diagnosing or treating diseases.
(6) No patent right shall be granted to new varieties of animals and plants. China has the Regulations on the Protection of New Plant Varieties, which is specially used to protect new plant varieties.
(7) substances obtained by nuclear transformation cannot be granted patent rights.
Legal basis: People's Republic of China (PRC) Patent Law.
Article 5 No patent right shall be granted for inventions and creations that violate laws, social ethics or harm public interests. No patent right shall be granted to inventions and creations obtained or utilized in violation of laws and administrative regulations and completed by relying on genetic resources.
Article 25 No patent right shall be granted to the following projects:
(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.
The production method of the products listed in Item (4) of the preceding paragraph may be granted a patent right in accordance with the provisions of this Law.