CPC Main Group
B66B 17/00 Hoistway equipment
7 direct subcodes
Child Classifications
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- B66B 17/02 mounted in head-frames (winding towers for mines E04H12/26)
- B66B 17/04 Mining-hoist cars or cages
- B66B 17/08 Mining skips
- B66B 17/12 Counterpoises
- B66B 17/14 Applications of loading and unloading equipment (of general application B65G)
- 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 3,939
- 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