IPC Subgroup
B66F 3/4 inflatable
Introduced: September 1968
Last revised: January 2006
Full Title
Devices, e.g. jacks, adapted for uninterrupted lifting of loads > fluid-pressure operated > Constructional features > Load-engaging elements > inflatable
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- HOISTING; LIFTING; HAULING
- Subclass:
- HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
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