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DIFF Subgroup
F16C 19/54

Systems consisting of a plurality of bearings with rolling friction (spindle bearings F16C35/08)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Systems consisting of a plurality of bearings with rolling friction

CPC: Systems consisting of a plurality of bearings with rolling friction (spindle bearings F16C35/08)

Full Title

Full titles differ between systems:

IPC:

Bearings with rolling contact, for exclusively rotary movement > Systems consisting of a plurality of bearings with rolling friction

CPC:

Bearings with rolling contact, for exclusively rotary movement (adjustable bearings F16C23/00, F16C25/00 ) > Systems consisting of a plurality of bearings with rolling friction (spindle bearings F16C35/08)

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

3 codes are CPC-only extensions.

Child Classifications

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  • F16C 19/545 CPC only CPC only
  • F16C 19/55 with intermediate floating rings rotating at reduced speed IPC+CPC Available in IPC and CPC
  • F16C 19/56 in which the rolling bodies of one bearing differ in diameter from those of another 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