IPC Main Group
F16D 25/00 Fluid-actuated clutches
Introduced: September 1968
Last revised: January 2006
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:
- COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
6 direct subcodes
Child Classifications
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- F16D 25/02 with means for actuating or keeping engaged by a force derived at least partially from one of the shafts to be connected
- F16D 25/04 in which the fluid actuates an elastic clutching member, e.g. a diaphragm or a pneumatic tube
- F16D 25/06 in which the fluid actuates a piston incorporated in the clutch
- F16D 25/08 with fluid-actuated member not rotating with a clutching member
- F16D 25/1 Clutch systems with a plurality of fluid-actuated clutches
- F16D 25/12 Details not specific to one of the before-mentioned types
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