Inventor
LIPPMANN RAYMOND
US35 patents
⚠️ This page may combine multiple inventors who share the name “LIPPMANN RAYMOND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DELCO ELECTRONICS CORP
23 patentsUS5736865AApr 7, 1998
Capacitive rotary position encoder
DELCO ELECTRONICS CORP51 citations95
US5695269ADec 9, 1997
Multi-color display lighting by led
DELCO ELECTRONICS CORP93 citations95
US5941122AAug 24, 1999
Liquid level sensor incorporating a capacitive rotary position encoder
DELCO ELECTRONICS CORP27 citations92
US5936603AAug 10, 1999
Liquid crystal display with temperature compensated voltage
DELCO ELECTRONICS CORP52 citations92
US5665897ASep 9, 1997
Method of calibrating and zeroing stepper motor gauges
DELCO ELECTRONICS CORP36 citations92
US5623277AApr 22, 1997
Liquid crystal display with image storage ROM
DELCO ELECTRONICS CORP20 citations92
US5394344AFeb 28, 1995
Slew rate limiter with asymmetrical operation
DELCO ELECTRONICS CORP22 citations92
US5345398ASep 6, 1994
Gauge glider
DELCO ELECTRONICS CORP21 citations92
US5783939AJul 21, 1998
Stepper motor gauge calibration by AC feedback
DELCO ELECTRONICS CORP34 citations90
US5485740AJan 23, 1996
Method of calibration for gauging fuel in an automotive tank
DELCO ELECTRONICS CORP20 citations89
US4970441ANov 13, 1990
Brightness stabilizing control of a VF display
DELCO ELECTRONICS CORP8 citations74
US5408418AApr 18, 1995
Fuel wobbler
DELCO ELECTRONICS CORP15 citations73
US5325314AJun 28, 1994
Electronic gauge transform
DELCO ELECTRONICS CORP11 citations73
US5146154ASep 8, 1992
Circuit with ratiometric analog inputs
DELCO ELECTRONICS CORP14 citations73
US5014051AMay 7, 1991
Increased resolution sensor circuit
DELCO ELECTRONICS CORP12 citations73
US4882572ANov 21, 1989
Electronic range indicator for a motor vehicle
DELCO ELECTRONICS CORP13 citations73
US5233329AAug 3, 1993
Filter with hysteresis for trip point applications
DELCO ELECTRONICS CORP18 citations71
US5709576AJan 20, 1998
LCD connector alignment with printed wiring board
DELCO ELECTRONICS CORP14 citations70
US5701330ADec 23, 1997
Serial communication method and apparatus
DELCO ELECTRONICS CORP10 citations69
US5698974ADec 16, 1997
Robust gauge driving circuit with pulse modulated input
DELCO ELECTRONICS CORP8 citations65
US5489842AFeb 6, 1996
Method and apparatus for determining the rotational position of a magnetic rotor relative to current carrying coils utilizing magnetic coupling between coils
DELCO ELECTRONICS CORP5 citations62
US5371500ADec 6, 1994
Maintaining ratiometric data in electronically manipulated signal processing systems
DELCO ELECTRONICS CORP6 citations62
US5736641AApr 7, 1998
Capacitance decoded accelerometer
DELCO ELECTRONICS CORP3 citations59
DELPHI TECH INC
6 patentsUS7350954B2Apr 1, 2008
Display apparatus
DELPHI TECH INC68 citations97
US7021811B2Apr 4, 2006
Light distribution hub
DELPHI TECH INC31 citations91
US6741184B1May 25, 2004
Pointer position detection using light emitting diodes
DELPHI TECH INC28 citations91
US6160596ADec 12, 2000
Backlighting system for a liquid crystal display unit
DELPHI TECH INC45 citations89
US6384592B1May 7, 2002
Apparatus for minimizing angular rotor position errors in an air core gauge
DELPHI TECH INC4 citations62
US7350934B2Apr 1, 2008
Illuminated display system
DELPHI TECH INC1 citations51
GEN MOTORS CORP
3 patentsUS4586105AApr 29, 1986
High voltage protection device with a tape covered spark gap
GEN MOTORS CORP53 citations95
US4859912AAug 22, 1989
Stable brightness vacuum fluorescent display
GEN MOTORS CORP39 citations92
US4947410AAug 7, 1990
Method and apparatus for counting with a nonvolatile memory
GEN MOTORS CORP46 citations90