IPC Subgroup
B66B 17/16 for loading or unloading mining-hoist cars or cages
Introduced: September 1968
Last revised: January 2006
Full Title
Hoistway equipment > Applications of loading or unloading equipment > for loading or unloading mining-hoist cars or cages
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- HOISTING; LIFTING; HAULING
- Subclass:
- ELEVATORS; ESCALATORS OR MOVING WALKWAYS
Related Keywords
LOADING mining-hoist cages
3 direct subcodes
Child Classifications
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- B66B 17/18 Swinging bridges, e.g. for compensating for differences in level between car or cage and landing
- B66B 17/2 by moving vehicles into, or out of, the cars or cages
- B66B 17/22 Securing vehicles in cars or cages
Top Applicants
Top 10 applicants by patent filingsfor 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