IPC Main Group
B66C 9/00 Travelling gear incorporated in, or fitted to, trolleys or cranes
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- HOISTING; LIFTING; HAULING
- Subclass:
- CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
Related Keywords
TRAVELLING gear for cranes or trolleyscrane TROLLEYS
8 direct subcodes
Child Classifications
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- B66C 9/02 for underhung trolleys or cranes
- B66C 9/04 to facilitate negotiation of curves
- B66C 9/06 for more than one rail gauge
- B66C 9/08 Runners; Runner bearings
- B66C 9/1 Undercarriages or bogies, e.g. end carriages, end bogies
- B66C 9/14 Trolley or crane travel drives
- B66C 9/16 with means for maintaining alignment between wheels and track
- B66C 9/18 with means for locking trolleys or cranes to runways or tracks to prevent inadvertent movements
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