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PCE
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CPC Subgroup
B66F 3/08

screw operated (B66F3/44 takes precedence; gearings F16H)

Full Title

Devices, e.g. jacks, adapted for uninterrupted lifting of loads (mobile jacks of the garage type B66F5/00) > screw operated (B66F3/44 takes precedence; gearings F16H)

6 direct subcodes

Child Classifications

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  • B66F 3/10 with telescopic sleeves
  • B66F 3/12 comprising toggle levers (lazy-tongs mechanisms B66F3/22)
  • B66F 3/14 actuated through pawl-and-ratchet mechanisms
  • B66F 3/16 actuated through bevel-wheel gearings
  • B66F 3/18 actuated through worm gearings
  • B66F 3/20 actuated through multiple or change-speed gearings

Top Applicants

Top 10 applicants by patent filingsfor 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