What are the invalid cases of utility model patents?

Legal analysis: 1. The subject of a patent is not an invention, utility model or design prescribed by law. 2. Patents are inventions that violate laws, social morality or harm public interests. 3. It violates the principle of applying for a patent for invention. 4, in violation of the provisions of the confidentiality review. Inventions and utility models are not novel, creative and practical. 6. The design is not novel. 7. The patent subject belongs to the object that is not protected by the patent law. 8. The technical contents are not fully disclosed in the manual.

Legal basis: Article 2 of the Patent Law of People's Republic of China (PRC) Invention-creation as mentioned in this Law refers to inventions, utility models and designs. Invention refers to a new technical scheme proposed for a product, method or its improvement.