What scientific discovery has no patent?

No patent right shall be granted for inventions and creations that violate state laws, social ethics or harm public interests. No patent right shall be granted for the following items: 1. Scientific discovery. Scientific discovery is only an understanding of natural laws, not an invention made by using natural laws. Can not be directly applied to production practice, does not have industrial practicability, so no patent right is granted. 2. Rules and methods of intellectual activities. It only guides people to think, identify, judge and remember the information expressed, and it does not use technical means, nor follows the laws of nature, and does not have the characteristics of technology, so it cannot be granted a patent right. 3. Diagnosis and treatment of diseases. The diagnosis and treatment of diseases refers to the process of identifying, determining or eliminating the causes or pathological changes of living people or animals. It can't be used in industry, it's not practical, and it doesn't belong to the invention in the sense of patent law, so it can't be patented. 4. Animal and plant varieties. Animal and plant varieties refer to the animal and plant varieties themselves, excluding the methods of producing them. If the intervention of artificial technology plays a major control or decisive role in the purpose or effect of this method, then this method does not belong to the main biological method and can be granted a patent right.