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DIFF Subgroup
F16D 13/70

Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Friction clutches > Details > Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members

CPC:

Friction clutches (arrangements for synchronisation F16D23/02) > Details > Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

Child Classifications

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  • F16D 13/71 in which the clutching pressure is produced by springs only IPC+CPC Available in IPC and CPC
  • F16D 2013/703 2nd only CPC only CPC only
  • F16D 2013/706 2nd only CPC only CPC only

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