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DIFF Subgroup
F16F 1/42

characterised by the mode of stressing

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Springs > made of plastics, e.g. rubber; made of material having high internal friction > characterised by the mode of stressing

CPC:

Springs (working with fluid F16F5/00, F16F9/00) > made of rubber or other material having high internal friction, > characterised by the mode of stressing

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • F16F 1/46 loaded mainly in tension IPC+CPC Available in IPC and CPC
  • F16F 1/48 loaded mainly in torsion 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