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PCE
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DIFF Subgroup
B66C 1/54

Internally-expanding grippers for handling hollow articles (B66C1/46 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Internally-expanding grippers for handling hollow articles

CPC: Internally-expanding grippers for handling hollow articles (B66C1/46 takes precedence)

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 > Internally-expanding grippers for handling hollow articles

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 > Internally-expanding grippers for handling hollow articles (B66C1/46 takes precedence)

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

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  • B66C 1/56 for handling tubes IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B66,2013–2023, worldwide · Source: EPO PATSTAT

  1. INVENTIO CH 3,843
  2. OTIS ELEVATOR COMPANY US 3,709
  3. SGCC(STATE GRID CORPORATION OF CHINA) 2,987
  4. KONE CORPORATION FI 2,922
  5. TOSHIBA ELEVATOR COMPANY 2,922
  6. HITACHI 2,321
  7. MITSUBISHI ELECTRIC CORPORATION JP 2,287
  8. MITSUBISHI ELECTRIC CORPORATION 1,870
  9. HITACHI BUILDING SYSTEMS COMPANY 1,700
  10. ANHUI HELI COMPANY 1,325

Top Applicants (CPC)

Class B66,2013–2023, worldwide · Source: EPO PATSTAT

  1. INVENTIO CH 3,939
  2. OTIS ELEVATOR COMPANY US 3,810
  3. KONE CORPORATION FI 3,008
  4. MITSUBISHI ELECTRIC CORPORATION JP 2,333
  5. MITSUBISHI ELECTRIC CORPORATION 1,254
  6. HITACHI 1,195
  7. OTIS ELEVATOR COMPANY 1,065
  8. SGCC(STATE GRID CORPORATION OF CHINA) 961
  9. INVENTIO 828
  10. CROWN EQUIPMENT CORPORATION US 828