DIFF Main Group
B66C 7/00 Runways, tracks or trackways for trolleys or cranes
Introduced: September 1968
Title
Titles differ between systems:
IPC: Runways, tracks, or trackways for trolleys or cranes
CPC: Runways, tracks or trackways for trolleys or cranes
Full Title
Full titles differ between systems:
IPC:
Runways, tracks, or trackways for trolleys or cranes
CPC:
Runways, tracks or trackways for trolleys or cranes
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B66C 7/08 Constructional features of runway rails or rail mountings (of general application E01B) IPC+CPC Available in IPC and CPC
- B66C 7/12 Devices for changing direction of travel or for transferring from one runway to another; Crossings; Combinations of tracks of different gauges (transfer devices of general application E01B) IPC+CPC Available in IPC and CPC
- B66C 7/16 Devices specially adapted for limiting trolley or crane travel; Arrangements of buffer-stops (buffer-stops of interest apart from this application B61K7/18; limit-switch arrangements, limit circuits B66D1/56) 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