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DIFF Subgroup
B66C 9/10

Undercarriages or bogies, e.g. end carriages, end bogies

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Travelling gear incorporated in, or fitted to, trolleys or cranes > Undercarriages or bogies, e.g. end carriages, end bogies

CPC:

Travelling gear incorporated in or fitted to trolleys or cranes (; for dredgers E02F) > Undercarriages or bogies, e.g. end carriages, end bogies

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

Child Classifications

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  • B66C 9/12 with load-distributing means for equalising wheel pressure 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