2. After each patent application enters the examination system of the Patent Office, the preliminary examiner will classify it and determine the classification number of 1 ipc.
3. This application will enter the stack where the corresponding ipc classification number is located, FIFO.
4. When examiners in related fields (ipc classification number) submit proposals, enter the number n of proposals, and then the first n applications in the stack belonging to this field (ipc classification number) will enter the examiner's own review system.