IPC Main Group
B66B 17/00 Hoistway equipment
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- HOISTING; LIFTING; HAULING
- Subclass:
- ELEVATORS; ESCALATORS OR MOVING WALKWAYS
7 direct subcodes
Child Classifications
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- B66B 17/02 mounted in head-frames
- B66B 17/04 Mining-hoist cars or cages
- B66B 17/08 Mining skips
- B66B 17/12 Counterpoises
- B66B 17/14 Applications of loading or unloading equipment
- B66B 17/34 Safe lift clips; Keps
- B66B 17/36 Gates or other apparatus controlling access to, or exit from, cars, cages, or hoistway landings
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