Where a patent application involves national defense interests and needs to be kept confidential, it shall be accepted and examined by the national defense patent agency; Where the patent application accepted by the patent administrative department of the State Council involves national defense interests and needs to be kept confidential, it shall be handed over to the national defense patent institution for examination in time. If there is no reason for rejection after examination by the national defense patent agency, the patent administration department of the State Council shall make a decision to grant the national defense patent right.