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PCE
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DIFF Subgroup
B66B 1/12

with devices, e.g. handles or levers, located at a control station for direct control movements, e.g. electric mining-hoist control systems

Introduced: September 1968

Title

Titles differ between systems:

IPC: with devices, e.g. handles or levers, located at a control station for direct control of movements, e.g. electric mining-hoist control systems

CPC: with devices, e.g. handles or levers, located at a control station for direct control movements, e.g. electric mining-hoist control systems

Full Title

Full titles differ between systems:

IPC:

Control systems of elevators in general > Control systems without regulation, i.e. without retroactive action > electric > with devices, e.g. handles or levers, located at a control station for direct control of movements, e.g. electric mining-hoist control systems

CPC:

Control systems of elevators in general (safety devices B66B5/00; controlling door or gate operation B66B13/00; systems of general application G05) > Control systems without regulation, i.e. without retroactive action > electric > with devices, e.g. handles or levers, located at a control station for direct control movements, e.g. electric mining-hoist control systems

No child classifications to compare. This is a leaf node in both 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