The transfer without patent application belongs to technology transfer, and a technology transfer contract needs to be signed. This has nothing to do with China National Intellectual Property Administration.
In the process of patent application (when the patent application is not authorized), it is necessary to sign a contract for the transfer of patent application right, and go through the formalities for the change of filing matters in China National Intellectual Property Administration.
If the patent is transferred after authorization, the patent right shall be transferred accordingly. It is necessary to sign a patent right transfer contract, and go through the formalities for changing the registered items in China National Intellectual Property Administration.