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PCE
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DIFF Subgroup
F16D 25/0635

with flat friction surfaces, e.g. discs

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Fluid-actuated clutches > in which the fluid actuates a piston incorporated in the clutch > the clutch having friction surfaces > with clutch members exclusively moving axially > with flat friction surfaces, e.g. discs

CPC:

Fluid-actuated clutches > in which the fluid actuates a piston incorporated in, the clutch (F16D25/02 takes precedence) > the clutch having friction surfaces > with clutch members exclusively moving axially > with flat friction surfaces, e.g. discs

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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  • F16D 25/0638 with more than two discs, e.g. multiple lamellae since 1990 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