Inventor
ELSER DIETER
DE35 patents
⚠️ This page may combine multiple inventors who share the name “ELSER DIETER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZAHNRADFABRIK FRIEDRICHSHAFEN
32 patentsUS4030403AJun 21, 1977
Power steering with accumulator operation
ZAHNRADFABRIK FRIEDRICHSHAFEN32 citations92
US4848402AJul 18, 1989
Rotary slide valve for hydraulic auxiliary power steerings
ZAHNRADFABRIK FRIEDRICHSHAFEN27 citations91
US5080186AJan 14, 1992
Servo-assisted steering system for motor vechicles
ZAHNRADFABRIK FRIEDRICHSHAFEN22 citations89
US6328323B1Dec 11, 2001
Actuator
ZAHNRADFABRIK FRIEDRICHSHAFEN17 citations84
US5839527ANov 24, 1998
Multi-axle steering system for vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN17 citations83
US5799259AAug 25, 1998
Vehicle with steerable front and rear wheels
ZAHNRADFABRIK FRIEDRICHSHAFEN17 citations83
US5322142AJun 21, 1994
Hydraulic auxiliary power steering
ZAHNRADFABRIK FRIEDRICHSHAFEN12 citations74
US5086864AFeb 11, 1992
Hydraulic auxiliary-power steering device
ZAHNRADFABRIK FRIEDRICHSHAFEN10 citations74
US4614127ASep 30, 1986
Steering gear
ZAHNRADFABRIK FRIEDRICHSHAFEN11 citations74
US4442759AApr 17, 1984
Power booster unit
ZAHNRADFABRIK FRIEDRICHSHAFEN10 citations74
US4417501ANov 29, 1983
Steering booster system
ZAHNRADFABRIK FRIEDRICHSHAFEN8 citations74
US4373598AFeb 15, 1983
Auxiliary steering for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN15 citations74
US4367672AJan 11, 1983
Auxiliary power steering, especially for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN16 citations74
US4285366AAug 25, 1981
Pressure medium control system for auxiliary power steering systems
ZAHNRADFABRIK FRIEDRICHSHAFEN9 citations74
US4261248AApr 14, 1981
Auxiliary power steering system with relief valve control
ZAHNRADFABRIK FRIEDRICHSHAFEN13 citations74
US4232586ANov 11, 1980
Steering control valve for power booster steering mechanisms
ZAHNRADFABRIK FRIEDRICHSHAFEN8 citations74
US4200030AApr 29, 1980
Servo steering gear
ZAHNRADFABRIK FRIEDRICHSHAFEN8 citations74
US4202249AMay 13, 1980
Power steering mechanism control valve
ZAHNRADFABRIK FRIEDRICHSHAFEN8 citations73
US6230839B1May 15, 2001
Power steering with hydraulic power assistance
ZAHNRADFABRIK FRIEDRICHSHAFEN12 citations72
US5099939AMar 31, 1992
Multi-axle steering system
ZAHNRADFABRIK FRIEDRICHSHAFEN20 citations72
US5107752AApr 28, 1992
Rotary gate valve for hydraulic servo-assisted steering systems
ZAHNRADFABRIK FRIEDRICHSHAFEN8 citations71
US5086687AFeb 11, 1992
Rotary slide valve for hydraulic auxiliary power steering
ZAHNRADFABRIK FRIEDRICHSHAFEN9 citations71
US4368794AJan 18, 1983
Auxiliary power steering for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN12 citations71
US4483237ANov 20, 1984
Steering gear with auxiliary power support
ZAHNRADFABRIK FRIEDRICHSHAFEN3 citations63
US4421010ADec 20, 1983
Steering gear for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN6 citations63
US4421011ADec 20, 1983
Power steering system for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN2 citations63
US4285266AAug 25, 1981
Servo steering gear
ZAHNRADFABRIK FRIEDRICHSHAFEN6 citations63
US4198898AApr 22, 1980
Servo steering gear
ZAHNRADFABRIK FRIEDRICHSHAFEN5 citations63
US5139106AAug 18, 1992
Auxiliary power steering system, especially for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN6 citations60
US5138896AAug 18, 1992
Steering gear, especially for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN2 citations59
US4029124AJun 14, 1977
Power steering control valve
ZAHNRADFABRIK FRIEDRICHSHAFEN1 citations52
US4819757AApr 11, 1989
Power steering for motor vehicles
ZAHNRADFABRIK FRIEDRICHSHAFEN1 citations43