Inventor
GRATZER FRANZ
AT17 patents
⚠️ This page may combine multiple inventors who share the name “GRATZER FRANZ”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
STEYR DAIMLER PUCH AG
7 patentsUS5127503AJul 7, 1992
Liquid friction coupling
STEYR DAIMLER PUCH AG30 citations92
US6484856B1Nov 26, 2002
Speed-difference-dependent hydraulic coupling with control valves
STEYR DAIMLER PUCH AG6 citations73
US5443147AAug 22, 1995
Rotationally dependent free-wheeling coupling
STEYR DAIMLER PUCH AG15 citations73
US6250444B1Jun 26, 2001
Hydraulic clutch which is dependent on rotation speed difference and has torque limiting
STEYR DAIMLER PUCH AG3 citations62
US5547054AAug 20, 1996
Free-wheeling coupling sensitive to the direction of rotation
STEYR DAIMLER PUCH AG3 citations62
US7287635B2Oct 30, 2007
Force -transmission unit comprising speed -dependent hydraulic clutch and centrifugal force compensation
STEYR DAIMLER PUCH AG1 citations51
US6684991B1Feb 3, 2004
Rotational speed differential hydraulic clutch having control valves
STEYR DAIMLER PUCH AG1 citations51
MAGNA DRIVETRAIN AG & CO KG
3 patentsUS7753173B2Jul 13, 2010
Power divider for motor vehicles and lubrication thereof
MAGNA DRIVETRAIN AG & CO KG30 citations86
US7296669B2Nov 20, 2007
Simple action actuator with a hydraulic fast-opening valve for controlling a clutch
MAGNA DRIVETRAIN AG & CO KG19 citations82
US7694790B2Apr 13, 2010
Motor vehicle equipped with an integrated brake and clutch control system
MAGNA DRIVETRAIN AG & CO KG3 citations62