B66B 13/00 Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Doors, gates, or other apparatus controlling access to, or exit from, cages or lift-well landings
CPC: Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05)
Full Title
Full titles differ between systems:
Doors, gates, or other apparatus controlling access to, or exit from, cages or lift-well landings
Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05)
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
Navigate with arrow keys, Enter to open
- B66B 13/24 Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers +1 CPC IPC+CPC Available in IPC and CPC
- B66B 13/30 Constructional features of doors or gates (of interest apart from this application E06B) +4 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B66,2013–2023, worldwide · Source: EPO PATSTAT
- INVENTIO CH 3,843
- OTIS ELEVATOR COMPANY US 3,709
- SGCC(STATE GRID CORPORATION OF CHINA) 2,987
- KONE CORPORATION FI 2,922
- TOSHIBA ELEVATOR COMPANY 2,922
- HITACHI 2,321
- MITSUBISHI ELECTRIC CORPORATION JP 2,287
- MITSUBISHI ELECTRIC CORPORATION 1,870
- HITACHI BUILDING SYSTEMS COMPANY 1,700
- ANHUI HELI COMPANY 1,325
Top Applicants (CPC)
Class B66,2013–2023, worldwide · Source: EPO PATSTAT
- INVENTIO CH 3,939
- OTIS ELEVATOR COMPANY US 3,810
- KONE CORPORATION FI 3,008
- MITSUBISHI ELECTRIC CORPORATION JP 2,333
- MITSUBISHI ELECTRIC CORPORATION 1,254
- HITACHI 1,195
- OTIS ELEVATOR COMPANY 1,065
- SGCC(STATE GRID CORPORATION OF CHINA) 961
- INVENTIO 828
- CROWN EQUIPMENT CORPORATION US 828