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DIFF Subgroup
F16H 61/42

involving adjustment of a pump or motor with adjustable output or capacity

Introduced: January 1990

Full Title

Control functions within change-speed- or reversing-gearings for conveying rotary motion > Control of exclusively fluid gearing > hydrostatic > involving adjustment of a pump or motor with adjustable output or capacity

IPC and CPC are identically structured here. All 10 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2010.

Child Classifications

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  • F16H 61/421 Motor capacity control by electro-hydraulic control means, e.g. using solenoid valves since 2010 IPC+CPC Available in IPC and CPC
  • F16H 61/423 Motor capacity control by fluid pressure control means since 2010 IPC+CPC Available in IPC and CPC
  • F16H 61/425 Motor capacity control by electric actuators since 2010 IPC+CPC Available in IPC and CPC
  • F16H 61/427 Motor capacity control by mechanical control means, e.g. by levers or pedals since 2010 IPC+CPC Available in IPC and CPC
  • F16H 61/431 Pump capacity control by electro-hydraulic control means, e.g. using solenoid valves since 2010 IPC+CPC Available in IPC and CPC
  • F16H 61/433 Pump capacity control by fluid pressure control means since 2010 IPC+CPC Available in IPC and CPC
  • F16H 61/435 Pump capacity control by electric actuators since 2010 IPC+CPC Available in IPC and CPC
  • F16H 61/437 Pump capacity control by mechanical control means, e.g. by levers or pedals since 2010 IPC+CPC Available in IPC and CPC
  • F16H 61/438 Control of forward-reverse switching, e.g. control of the swash plate causing discharge in two directions since 2010 IPC+CPC Available in IPC and CPC
  • F16H 61/439 Control of the neutral position, e.g. by zero tilt rotation holding means since 2010 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F16,2013–2023, worldwide · Source: EPO PATSTAT

  1. SCHAEFFLER TECHNOLOGIES & COMPANY DE 21,545
  2. ZAHNRADFABRIK FRIEDRICHSHAFEN DE 9,446
  3. TOYOTA MOTOR CORPORATION 7,215
  4. HYUNDAI MOTOR COMPANY KR 6,846
  5. ROBERT BOSCH DE 6,106
  6. NTN CORPORATION 5,305
  7. SKF SE 4,219
  8. KIA MOTORS CORPORATION KR 3,852
  9. NSK 3,850
  10. HONDA MOTOR COMPANY 3,639

Top Applicants (CPC)

Class F16,2013–2023, worldwide · Source: EPO PATSTAT

  1. SCHAEFFLER TECHNOLOGIES & COMPANY DE 22,817
  2. ZAHNRADFABRIK FRIEDRICHSHAFEN DE 10,523
  3. HYUNDAI MOTOR COMPANY KR 7,933
  4. ROBERT BOSCH DE 7,059
  5. KIA MOTORS CORPORATION KR 4,867
  6. SKF SE 4,729
  7. TOYOTA MOTOR CORPORATION JP 4,111
  8. FORD GLOBAL TECHNOLOGIES US 3,838
  9. GM GLOBAL TECHNOLOGY OPERATIONS US 3,575
  10. TOYOTA MOTOR CORPORATION 3,499