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DIFF Subgroup
F16D 21/02

for interconnecting three or more shafts or other transmission members in different ways (in endless-track vehicles B62D)

Introduced: September 1968

Title

Titles differ between systems:

IPC: for interconnecting three or more shafts or other transmission members in different ways

CPC: for interconnecting three or more shafts or other transmission members in different ways (in endless-track vehicles B62D)

Full Title

Full titles differ between systems:

IPC:

Systems comprising a plurality of mechanically-actuated clutches > for interconnecting three or more shafts or other transmission members in different ways

CPC:

Systems comprising a plurality of actuated clutches (for synchronisation F16D23/04) > for interconnecting three or more shafts or other transmission members in different ways (in endless-track vehicles B62D)

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • F16D 21/04 with a shaft carrying a number of rotatable transmission members, e.g. gears, each of which can be connected to the shaft by a clutching member or members between the shaft and the hub of the transmission member 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