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CPC Subgroup
B66B 1/24

Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration

Full Title

Control systems of elevators in general (safety devices B66B5/00; controlling door or gate operation B66B13/00; systems of general application G05) > Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration

3 direct subcodes

Child Classifications

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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