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PCE
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CPC Subgroup
F16D 33/10

consisting of controllable supply and discharge openings

Full Title

Rotary fluid couplings or clutches of the hydrokinetic type > controlled by changing the amount of liquid in the working circuit > by devices incorporated in the fluid coupling, with or without remote control > consisting of controllable supply and discharge openings

1 direct subcode

Child Classifications

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  • F16D 33/12 controlled automatically by self-actuated valves

Top Applicants

Top 10 applicants by patent filingsfor 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