Under what circumstances will the patent application be rejected?

China National Intellectual Property Administration's decision to reject the patent application includes two situations:

One is that after preliminary examination, China National Intellectual Property Administration thinks that the application for a patent for invention, utility model or design does not conform to the provisions of the Patent Law and rejects it;

The other is that China National Intellectual Property Administration rejected the application for a patent for invention after substantive examination, arguing that it did not conform to the provisions of the Patent Law.