F16H 57/00 General details of gearing (of screw-and-nut gearing F16H25/00; of fluid gearing F16H39/00 - F16H43/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: General details of gearing
CPC: General details of gearing (of screw-and-nut gearing F16H25/00; of fluid gearing F16H39/00 - F16H43/00)
Full Title
Full titles differ between systems:
General details of gearing
General details of gearing (of screw-and-nut gearing F16H25/00; of fluid gearing F16H39/00 - F16H43/00)
Additional Content IPC
General details of screw-and-nut gearing General details of fluid gearing
CPC subdivides this area 3x more granularly than IPC with 11 additional codes.
11 codes are CPC-only extensions.
Note: 9 CPC extensions are marked as secondary classification only.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F16H 57/01 Monitoring wear or stress of gearing elements, e.g. for triggering maintenance since 2012 +4 CPC IPC+CPC Available in IPC and CPC
- F16H 57/04 Features relating to lubrication or cooling (control of lubrication or cooling in hydrostatic gearing F16H61/4165) +18 CPC IPC+CPC Available in IPC and CPC
- F16H 57/12 Arrangements for adjusting or for taking-up backlash not provided for elsewhere since 1974 +5 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class F16,2013–2023, worldwide · Source: EPO PATSTAT
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 21,545
- ZAHNRADFABRIK FRIEDRICHSHAFEN DE 9,446
- TOYOTA MOTOR CORPORATION 7,215
- HYUNDAI MOTOR COMPANY KR 6,846
- ROBERT BOSCH DE 6,106
- NTN CORPORATION 5,305
- SKF SE 4,219
- KIA MOTORS CORPORATION KR 3,852
- NSK 3,850
- HONDA MOTOR COMPANY 3,639
Top Applicants (CPC)
Class F16,2013–2023, worldwide · Source: EPO PATSTAT
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 22,817
- ZAHNRADFABRIK FRIEDRICHSHAFEN DE 10,523
- HYUNDAI MOTOR COMPANY KR 7,933
- ROBERT BOSCH DE 7,059
- KIA MOTORS CORPORATION KR 4,867
- SKF SE 4,729
- TOYOTA MOTOR CORPORATION JP 4,111
- FORD GLOBAL TECHNOLOGIES US 3,838
- GM GLOBAL TECHNOLOGY OPERATIONS US 3,575
- TOYOTA MOTOR CORPORATION 3,499