IPC Subgroup
B66C 13/18 Control systems or devices
Introduced: September 1968
Last revised: January 2006
Full Title
Other constructional features or details > Control systems or devices
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
CONTROL(S) systems for cranes
6 direct subcodes
Child Classifications
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- B66C 13/2 for non-electric drives
- B66C 13/22 for electric drives
- B66C 13/4 Applications of devices for transmitting control pulses; Applications of remote control devices
- B66C 13/46 Position indicators for suspended loads or for crane elements
- B66C 13/48 Automatic control of crane drives for producing a single or repeated working cycle; Program control
- B66C 13/5 Applications of limit circuits or of limit-switch arrangements
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