What are the reasons why the patent is invalid?

According to Article 66 of the Detailed Rules for the Implementation of the Patent Law, the reasons for declaring the patent right invalid are as follows: 1. An invention-creation that has obtained a patent right does not conform to the definition of invention, utility model or design in the detailed rules for the implementation of the Patent Law. 2. The invention-creation that has obtained the patent right or its implementation violates national laws, social morality or harms public interests. 3. The patented invention or utility model does not meet the requirements of the Patent Law on novelty, practicality and creativity. 4. The patented invention or utility model belongs to the field where no patent right is granted as stipulated in Article 25 of the Patent Law. 5. The patent design does not meet the requirements of Article 23 of the Patent Law on "different" or "dissimilar". 6. The description of the invention or utility model for which the patent is applied is not clearly and completely explained, which makes it impossible for ordinary technicians in the technical field to realize it; Its claim is not supported by the specification. 7. The modification or divisional application of the application document for a patent for invention or utility model is beyond the scope required to be recorded in the original specification; The modification of the application document for a patent for design is beyond the scope of the original picture or photograph. 8. An invention-creation that has obtained a patent right violates the provision in Article 12 of the Detailed Rules for the Implementation of the Patent Law that "only one patent can be obtained for the same invention-creation". 9. Invention-creation with patent right violates the principle of first application stipulated in Article 9 of the Patent Law. If the reasons for invalidation are not stated in the request or the reasons put forward do not conform to the above provisions, or if a decision has been made to revoke the patent right request or the request for invalidation, and then the Patent Reexamination Board requests invalidation with the same facts and reasons, it will not be accepted.