F16N 31/02 Oil catchers; Oil wipers (oil-scraping rings for pistons F16J9/20 )
Introduced: September 1968
Title
Titles differ between systems:
IPC: Oil catchers; Oil wipers
CPC: Oil catchers; Oil wipers (oil-scraping rings for pistons F16J9/20 )
Full Title
Full titles differ between systems:
Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus > Oil catchers; Oil wipers
Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus (oil separators for separating oil from exhaust steam F22G) > Oil catchers; Oil wipers (oil-scraping rings for pistons F16J9/20 )
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.
Child Classifications
Navigate with arrow keys, Enter to open
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