and applying frictional forces

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles > by mechanical means > Gripping members engaging only the external or internal surface of the articles > and applying frictional forces

CPC:

Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles (fastening to cables or ropes F16G11/00) > by mechanical means > Gripping members engaging only the external or internal surfaces of the articles (for handling or stripping castings or ingots during manufacture B22D29/00) > and applying frictional forces

Of 5 combined children, 3 exist in both systems.

2 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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B66C 1/442 CPC only CPC only
B66C 1/445 +1 CPC CPC only CPC only
B66C 1/46 by inflatable elements IPC+CPC Available in IPC and CPC
B66C 1/48 to vertical edge portions of sheets, tubes, or like thin or thin-walled articles (internally-expanding grippers B66C1/54) +1 CPC IPC+CPC Available in IPC and CPC
B66C 1/54 Internally-expanding grippers for handling hollow articles (B66C1/46 takes precedence) IPC+CPC Available in IPC and CPC

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