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DIFF Subgroup
F16D 49/20

Self-tightening brakes (with helical or coil with more than one turn F16D49/02)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Self-tightening brakes

CPC: Self-tightening brakes (with helical or coil with more than one turn F16D49/02)

Full Title

Full titles differ between systems:

IPC:

Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like > Self-tightening brakes

CPC:

Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like (similar clutches F16D13/10) > Self-tightening brakes (with helical or coil with more than one turn F16D49/02)

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

Child Classifications

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  • F16D 49/22 with an auxiliary friction member initiating or increasing the action of the brake 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