IPC Subgroup
F16J 15/32 with elastic sealings, e.g. O-rings
Introduced: September 1968
Last revised: January 2016
Full Title
Sealings > between relatively-moving surfaces > with elastic sealings, e.g. O-rings
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- Subclass:
- PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
8 direct subcodes
Child Classifications
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- F16J 15/3204 with at least one lip
- F16J 15/324 Arrangements for lubrication or cooling of the sealing itself
- F16J 15/3244 with hydrodynamic pumping action
- F16J 15/3248 provided with casings or supports
- F16J 15/3268 Mounting of sealing rings
- F16J 15/328 Manufacturing methods specially adapted for elastic sealings
- F16J 15/3284 characterised by their structure; Selection of materials
- F16J 15/3296 Arrangements for monitoring the condition or operation of elastic sealings; Arrangements for control of elastic sealings, e.g. of their geometry or stiffness
Top Applicants
Top 10 applicants by patent filingsfor 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