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PCE
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DIFF Subgroup
F16D 27/112

with flat friction surfaces, e.g. discs

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Magnetically-actuated clutches; Control or electric circuits therefor > with an electromagnet not rotating with a clutching member, i.e. without collecting rings > with axially movable clutching members > with flat friction surfaces, e.g. discs

CPC:

Magnetically- actuated clutches; Control or electric circuits therefor (clutches with magnetisable particles F16D37/02; ) > with an electromagnet not rotating with a clutching member, i.e. without collecting rings > with axially movable clutching members > 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 27/115 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