insert data (plsql)

 DECLARE
       CURSOR CUR103 IS
            SELECT A.PATENT_CTGRY FROM G103T A WHERE A.SKJ_FLG = '0';
        TYPE ARRAY IS TABLE OF G103T.PATENT_CTGRY%TYPE;
        patent_list ARRAY;
    BEGIN
        OPEN CUR103;
        LOOP
            FETCH CUR103 BULK COLLECT
              INTO patent_list LIMIT 300;
            IF patent_list.COUNT > 0 THEN
               ----------------------------------------------------
               FOR I IN patent_list.FIRST .. patent_list.COUNT
               LOOP
                     insert into G302t     
                        select  
                          *
                            from A
                           where A.PATENT_CTGRY =patent_list(i);
                           COMMIT;
               END LOOP;
               ----------------------------------------------------
            ELSE
               EXIT;
            END IF;
        END LOOP;

    IF CUR103%ISOPEN
    THEN
      CLOSE CUR103;
    END IF;
   END;