Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Rope, cable, or chain winding mechanisms; Capstans > Other constructional details > Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains

CPC:

Rope, cable, or chain winding mechanisms; Capstans (portable or mobile lifting or hauling appliances B66D3/00) > Other constructional details > Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains

Of 4 combined children, 2 exist in both systems.

1 codes are CPC-only extensions, 1 exist only in IPC.

Child Classifications

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B66D 1/365 CPC only CPC only
B66D 1/38 by means of guides movable relative to drum or barrel IPC+CPC Available in IPC and CPC
B66D 1/39 by means of axially-movable drums or barrels IPC+CPC Available in IPC and CPC
B66D 1/395 by means effecting both guiding and tensioning of ropes, cables or chains since 1980 IPC only IPC only

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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