B66D 5/02 Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
Introduced: September 1968
Title
Titles differ between systems:
IPC: Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes
CPC: Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
Full Title
Full titles differ between systems:
Braking or detent devices characterised by their application to lifting or hoisting gear, e.g. for controlling the lowering of loads > Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes
Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads (for pulley blocks B66D3/10) > Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
Of 8 combined children, 6 exist in both systems.
2 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
Navigate with arrow keys, Enter to open
- B66D 5/18 for generating braking forces which are proportional to the loads suspended; Load-actuated brakes 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