IPC Subgroup
F16J 15/16 between relatively-moving surfaces
Introduced: September 1968
Last revised: January 2006
Full Title
Sealings > between relatively-moving surfaces
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
Additional Content
Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces Sealings by means of sealing bellows or diaphragms Bellows pistons Piston-rings or ring sealings of similar construction
Related Keywords
STUFFING boxes in general
5 direct subcodes
Child Classifications
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- F16J 15/18 with stuffing-boxes for elastic or plastic packings
- F16J 15/26 with stuffing-boxes for rigid sealing rings
- F16J 15/32 with elastic sealings, e.g. O-rings
- F16J 15/34 with slip-ring pressed against a more or less radial face on one member
- F16J 15/4 by means of fluid
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