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CPC Subgroup Additional Only
F15B 2211/665

Methods of control using electronic components

Full Title

Circuits for servomotor systems > Circuit components or control therefor > Methods of control using electronic components

8 direct subcodes

Child Classifications

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  • F15B 2211/6651 Control of the prime mover, e.g. control of the output torque or rotational speed
  • F15B 2211/6652 Control of the pressure source, e.g. control of the swash plate angle
  • F15B 2211/6653 Pressure control
  • F15B 2211/6654 Flow rate control
  • F15B 2211/6655 Power control, e.g. combined pressure and flow rate control
  • F15B 2211/6656 Closed loop control, i.e. control using feedback
  • F15B 2211/6657 Open loop control, i.e. control without feedback
  • F15B 2211/6658 Control using different modes, e.g. four-quadrant-operation, working mode and transportation mode

Top Applicants

Top 10 applicants by patent filingsfor class F15, 2013–2023, worldwide · Source: EPO PATSTAT

  1. ROBERT BOSCH DE 1,281
  2. SMC CORPORATION JP 865
  3. HITACHI CONSTRUCTION MACHINERY COMPANY JP 814
  4. KYB CORPORATION JP 584
  5. SCHAEFFLER TECHNOLOGIES & COMPANY DE 536
  6. CATERPILLAR US 532
  7. FESTO & COMPANY DE 486
  8. JOHN DEERE US 419
  9. KAWASAKI HEAVY IND JP 368
  10. HAMILTON SUNDSTRAND US 368