1. The theme does not meet the conditions for patent grant, including: the theme of the invention or utility model is not novel, creative or practical; The theme of the design patent is not novel or conflicts with the legal rights previously obtained by others. 2. Illegal situation in the patent application: the description does not fully disclose the invention or utility model; The claim is not based on the specification; The modification of the patent application documents is beyond the prescribed scope; The subject matter of the patent right does not conform to the definition of invention, utility model or design; Principle of consultation authorization for simultaneous application; The claim is unclear, not concise or lacks the necessary technical features to solve its technical problems; 3. Violation of mandatory provisions of the law, including: violation of national laws, social ethics, or circumstances that hinder public interests; Scientific discoveries and other legal provisions do not grant patent rights; 4. Repeated authorization: If two or more applicants apply for a patent for the same invention-creation, the patent right will be granted to the first applicant, that is, an invention-creation will only be granted to one person (the first applicant). Inventions, utility models and designs cannot be patented under the above circumstances, and those that have been patented may be declared invalid.