IPC Main Group
B66D 3/00 Portable or mobile lifting or hauling appliances
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- HOISTING; LIFTING; HAULING
- Subclass:
- CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
Related Keywords
portable or mobile HAULING -deviceshoistsTACKLE for hauling or hoisting
4 direct subcodes
Child Classifications
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- B66D 3/02 Manually-operated, e.g. lever-actuated, devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction
- B66D 3/04 Pulley blocks or like devices in which force is applied to a rope, cable or chain, which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D 3/12 Chain or like hand-operated tackles with or without power-transmission gearing between operating member and lifting rope, chain, or cable
- B66D 3/18 Power-operated hoists
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