Inventor
KNOEDLER HELMUT
DE13 patents
⚠️ This page may combine multiple inventors who share the name “KNOEDLER HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZAHNRADFABRIK FRIEDRICHSHAFEN
8 patentsUS4258584AMar 31, 1981
Ball circulation screw gear
ZAHNRADFABRIK FRIEDRICHSHAFEN30 citations91
US5040631AAug 20, 1991
Rack and pinion auxiliary steering mechanism, especially for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN20 citations81
US5509493AApr 23, 1996
Control device for steering-rack equipped auxiliary power steering
ZAHNRADFABRIK FRIEDRICHSHAFEN9 citations73
US4699231AOct 13, 1987
Rack and pinion auxiliary power steering
ZAHNRADFABRIK FRIEDRICHSHAFEN11 citations73
US4438679AMar 27, 1984
Axial thrust compensating means for power steering control valve
ZAHNRADFABRIK FRIEDRICHSHAFEN7 citations73
US4555975ADec 3, 1985
Hydraulic steering
ZAHNRADFABRIK FRIEDRICHSHAFEN6 citations62
US4590965AMay 27, 1986
Pressure agent control arrangement for auxiliary power steering mechanisms
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations51
US6068077AMay 30, 2000
Power steering gear intended in particular for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations39
ZF LENKSYSTEME GMBH
4 patentsUS7232006B2Jun 19, 2007
Clutch for steer-by-wire steering system
ZF LENKSYSTEME GMBH9 citations72
US6948584B2Sep 27, 2005
Steering device
ZF LENKSYSTEME GMBH2 citations61
US7364005B2Apr 29, 2008
Steering system
ZF LENKSYSTEME GMBH2 citations57
US8348009B2Jan 8, 2013
Steering device, particularly electric servo steering device for a motor vehicle
ZF LENKSYSTEME GMBH2 citations56