The situation in which the invention patent is rejected.

Legal analysis: 1. No patent right shall be granted for inventions and creations that violate state laws, social ethics or hinder public interests; 2. No patent right shall be granted for the following items: 1) scientific discovery; 2) Rules and methods of intellectual activities; 3) Diagnosis and treatment of diseases; 4) Species of animals and plants (the manufacturing method of their products can be patented); 5) substances obtained by nuclear transformation; 3. Patented inventions and utility models shall be novel, creative and practical; 4. Only one patent can be granted for the same invention; 5. The patent claim shall specify the technical features of the invention or utility model and clearly and concisely specify the scope of protection; 6. The independent claim shall reflect the technical scheme of the invention or utility model as a whole, and record and solve the necessary technical characteristics of technical problems; 7. Where two or more applicants apply for a patent for the same invention-creation, the patent right shall be granted to the first applicant.

Legal basis: Detailed Rules for the Implementation of People's Republic of China (PRC) Patent Law.

Article 65 In accordance with the provisions of Article 45 of the Patent Law, the request for declaring the patent right invalid or partially invalid shall be submitted to the Patent Reexamination Board in duplicate, together with the necessary evidence. The request for invalidation shall, in combination with all the evidence submitted, specify the reasons for the request for invalidation and indicate the evidence on which each reason is based.

The reason for the request for invalidation mentioned in the preceding paragraph refers to that the invention-creation granted a patent does not conform to the provisions of Article 2, Paragraph 1 of Article 20, Article 22, Article 23, Paragraph 3, Paragraph 4 of Article 26, Paragraph 2 of Article 27, Paragraph 2 of Article 33 or Paragraph 1 of Article 20 and Paragraph 1 of Article 43, or belongs to the provisions of Article 5 and Article 25 of the Patent Law, or the patent right cannot be obtained according to the provisions of Article 9 of the Patent Law.

Rule 66 Where the request for invalidation of the patent right does not conform to the provisions of Paragraph 1 of Article 19 of the Patent Law or Article 65 of these Rules, the Patent Reexamination Board shall not accept it.

After the Patent Reexamination Board makes a decision on the request for invalidation, the Patent Reexamination Board refuses to accept the request for invalidation on the same grounds and evidence.

Where a request for invalidation of the patent right for a design is made on the grounds that it does not conform to the third paragraph of Article 23 of the Patent Law, but no evidence to prove the conflict of rights is submitted, the Patent Reexamination Board shall not accept it.

If the request for invalidation of the patent right does not conform to the prescribed format, the claimant for invalidation shall make corrections within the time limit specified by the Patent Reexamination Board; If no correction is made at the expiration of the time limit, the request for invalidation shall be deemed not to have been made.