Inventor
MURPHY RICHARD D
US24 patents
⚠️ This page may combine multiple inventors who share the name “MURPHY RICHARD D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNITED TECHNOLOGIES CORP
14 patentsUS4337516AJun 29, 1982
Sensor fault detection by activity monitoring
UNITED TECHNOLOGIES CORP174 citations98
US4270168AMay 26, 1981
Selective disablement in fail-operational, fail-safe multi-computer control system
UNITED TECHNOLOGIES CORP72 citations96
US4029271AJun 14, 1977
Automatic approach to hover system
UNITED TECHNOLOGIES CORP88 citations94
US4890284ADec 26, 1989
Backup control system (BUCS)
UNITED TECHNOLOGIES CORP34 citations92
US4412280AOct 25, 1983
Complementary commands in fail-operational, fail-safe multi-computer control system
UNITED TECHNOLOGIES CORP39 citations92
US4382283AMay 3, 1983
Helicopter attitude and airspeed acquisition and retention system
UNITED TECHNOLOGIES CORP32 citations92
US4354230AOct 12, 1982
Synchronized, fail-operational, fail-safe multi-computer control system
UNITED TECHNOLOGIES CORP31 citations92
US4500967AFeb 19, 1985
Aircraft short-term roll attitude retention system
UNITED TECHNOLOGIES CORP38 citations91
US4279391AJul 21, 1981
Desensitizing helicopter control response to inadvertent pilot inputs
UNITED TECHNOLOGIES CORP20 citations82
US4741501AMay 3, 1988
Preventing augmenting vertical load induced oscillations in a helicopter
UNITED TECHNOLOGIES CORP20 citations81
US4564908AJan 14, 1986
Automatic limiting of helicopter engine torque
UNITED TECHNOLOGIES CORP25 citations81
US4580223AApr 1, 1986
Incorporation of pitch bias actuator function into an existing AFCS
UNITED TECHNOLOGIES CORP21 citations74
US4566101AJan 21, 1986
Oscillatory failure monitor
UNITED TECHNOLOGIES CORP17 citations73
US4563743AJan 7, 1986
Maneuver-force gradient system
UNITED TECHNOLOGIES CORP13 citations73
COMPAQ COMPUTER CORP
3 patentsUS5787558AAug 4, 1998
Method of manufacturing a page-wide piezoelectric ink jet print engine
COMPAQ COMPUTER CORP51 citations96
US5479684AJan 2, 1996
Method of manufacturing ink jet printheads by induction heating of low melting point metal alloys
COMPAQ COMPUTER CORP19 citations84
US5767878AJun 16, 1998
Page-wide piezoelectric ink jet print engine with circumferentially poled piezoelectric material
COMPAQ COMPUTER CORP13 citations74