Inventor

LANG ARMIN

DE53 patents

⚠️ This page may combine multiple inventors who share the name “LANG ARMIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ZAHNRADFABRIK FRIEDRICHSHAFEN

44 patents

US4219093AAug 26, 1980

Vehicle steering assist

ZAHNRADFABRIK FRIEDRICHSHAFEN48 citations93

US5009110AApr 23, 1991

Torque sensor, in particular for electric steering mechanism

ZAHNRADFABRIK FRIEDRICHSHAFEN27 citations91

US4390158AJun 28, 1983

Electro hydraulic servo valve

ZAHNRADFABRIK FRIEDRICHSHAFEN26 citations82

US5040631AAug 20, 1991

Rack and pinion auxiliary steering mechanism, especially for motor vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN20 citations81

US5529137AJun 25, 1996

Power-assisted steering for motor vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN9 citations74

US5113172AMay 12, 1992

Angle of rotation potentiometer

ZAHNRADFABRIK FRIEDRICHSHAFEN14 citations74

US4913249AApr 3, 1990

Auxiliary power steering mechanism, especially for motor vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN16 citations74

US4811806AMar 14, 1989

Servosteering, especially for motor vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN10 citations74

US4763091AAug 9, 1988

Air gap setting device for electromagnets

ZAHNRADFABRIK FRIEDRICHSHAFEN15 citations74

US4557344ADec 10, 1985

Servosteering, especially for motor vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN7 citations74

US4438827AMar 27, 1984

Servo steering, especially for motor vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN12 citations74

US4413472ANov 8, 1983

High-pressure pump with pressure regulator

ZAHNRADFABRIK FRIEDRICHSHAFEN8 citations74

US4344284AAug 17, 1982

Hydraulic auxiliary power steering

ZAHNRADFABRIK FRIEDRICHSHAFEN7 citations74

US4313467AFeb 2, 1982

Control valve

ZAHNRADFABRIK FRIEDRICHSHAFEN17 citations74

US4304316ADec 8, 1981

Comparator for the automatic control system of an automatic steering installation

ZAHNRADFABRIK FRIEDRICHSHAFEN17 citations74

US4189983AFeb 26, 1980

Servomotor pressure control responsive to piston travel

ZAHNRADFABRIK FRIEDRICHSHAFEN9 citations74

US4073140AFeb 14, 1978

Connecting valve for reserve pump

ZAHNRADFABRIK FRIEDRICHSHAFEN17 citations74

US4068678AJan 17, 1978

Valve for hydraulic systems

ZAHNRADFABRIK FRIEDRICHSHAFEN8 citations74

US4028997AJun 14, 1977

Motor vehicle steering

ZAHNRADFABRIK FRIEDRICHSHAFEN11 citations74

US3952771AApr 27, 1976

Relief valves with pilot valves

ZAHNRADFABRIK FRIEDRICHSHAFEN12 citations74

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

US4456087AJun 26, 1984

Vehicle power steering apparatus

ZAHNRADFABRIK FRIEDRICHSHAFEN13 citations71

US5660247AAug 26, 1997

Rack servo-steering, particularly for motor vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN5 citations63

US5582264ADec 10, 1996

Power assisted steering system, in particular, for motor vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations63

US5509494AApr 23, 1996

Auxiliary power steering

ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations63

US4815551AMar 28, 1989

Servosteering, especially for motor vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations63

US4784041ANov 15, 1988

Servosteering pressure control device

ZAHNRADFABRIK FRIEDRICHSHAFEN5 citations63

US4462478AJul 31, 1984

Servo steering

ZAHNRADFABRIK FRIEDRICHSHAFEN3 citations63

US4428449AJan 31, 1984

Comparator for the control circuit of an automatic steering installation

ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations63

US4385493AMay 31, 1983

Hydraulically assisted steering device

ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations63

US4383587AMay 17, 1983

Rack steering gear

ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations63

US4354555AOct 19, 1982

Hydraulic lifting arrangement for implements, especially on tractors

ZAHNRADFABRIK FRIEDRICHSHAFEN5 citations63

US4331211AMay 25, 1982

Hydraulic steering system with reaction to the actuator

ZAHNRADFABRIK FRIEDRICHSHAFEN6 citations63

US4325286AApr 20, 1982

Steering valve mechanism having closed neutral position

ZAHNRADFABRIK FRIEDRICHSHAFEN5 citations63

US4189982AFeb 26, 1980

Feed pressure bypass valving for servomotors

ZAHNRADFABRIK FRIEDRICHSHAFEN3 citations63

US3989120ANov 2, 1976

Power steering with variable volume servo control

ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations63

US4555975ADec 3, 1985

Hydraulic steering

ZAHNRADFABRIK FRIEDRICHSHAFEN6 citations62

US5530614AJun 25, 1996

Proportional valve control unit for auxiliary power steering

ZAHNRADFABRIK FRIEDRICHSHAFEN2 citations60

US5860351AJan 19, 1999

Hydraulic steering arrangement

ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations59

US3968733AJul 13, 1976

Hydraulic power-steering system for automotive vehicles

ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations57

US4020748AMay 3, 1977

Valve structure for hydraulic control system

ZAHNRADFABRIK FRIEDRICHSHAFEN1 citations52

US4590965AMay 27, 1986

Pressure agent control arrangement for auxiliary power steering mechanisms

ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations51

EICHENAUER HEIZELEMENTE GMBH

1 patent

US7836684B2Nov 23, 2010

Urea supply system for a waste gas cleaning catalyst and heating insert suitable therefor

EICHENAUER HEIZELEMENTE GMBH48 citations89

AGFA GEVAERT NV

1 patent

US5506085AApr 9, 1996

Thermal imaging element

AGFA GEVAERT NV21 citations88

LAUTH ARNO

1 patent

US8541722B2Sep 24, 2013

Electrical heater and method for manufacturing an electrical heater

LAUTH ARNO6 citations71

ZF FRIEDRICHSHAFEN

1 patent

US5950759ASep 14, 1999

Servo-assisted steering system

ZF FRIEDRICHSHAFEN2 citations58

PATENTBURO ZAHNRADFABRIK FRIED

1 patent

US4193471AMar 18, 1980

Power steering control with maintenance of hydraulic blocking of power cylinder

PATENTBURO ZAHNRADFABRIK FRIED4 citations57

FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

1 patent

US11123692B2Sep 21, 2021

Hollow fibre membrane having three dimensional texturing

FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH0 citations53

Showing the top 50 of 53 patents by PatentIndex Score.