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Inventor

FISCHER WILLIAM C

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

UNITED TECHNOLOGIES CORP

24 patents
US4890284ADec 26, 1989

Backup control system (BUCS)

UNITED TECHNOLOGIES CORP34 citations92
US4599698AJul 8, 1986

Aircraft trim actuator shutdown monitor system and method

UNITED TECHNOLOGIES CORP28 citations92
US4626998ADec 2, 1986

Heading reference trim system

UNITED TECHNOLOGIES CORP22 citations82
US4392203AJul 5, 1983

Aircraft coordinated turn with lagged roll rate

UNITED TECHNOLOGIES CORP26 citations82
US4330829AMay 18, 1982

Helicopter flight stability control induced oscillation suppression

UNITED TECHNOLOGIES CORP24 citations82
US4279391AJul 21, 1981

Desensitizing helicopter control response to inadvertent pilot inputs

UNITED TECHNOLOGIES CORP20 citations82
US4484283ANov 20, 1984

Aircraft roll-yaw fault protocols

UNITED TECHNOLOGIES CORP24 citations81
US4534702AAug 13, 1985

Pneumatic control valve actuator computer control arrangement

UNITED TECHNOLOGIES CORP21 citations76
US4594714AJun 10, 1986

Dual-actuator monitor

UNITED TECHNOLOGIES CORP15 citations74
US4477876AOct 16, 1984

Dual response aircraft reference synchronization

UNITED TECHNOLOGIES CORP8 citations74
US4387431AJun 7, 1983

Roll attitude inhibit of aircraft automatic outer loop

UNITED TECHNOLOGIES CORP7 citations74
US4387432AJun 7, 1983

Pulsed aircraft actuator

UNITED TECHNOLOGIES CORP17 citations74
US4385355AMay 24, 1983

Automatic outer loop centering of aircraft inner loop

UNITED TECHNOLOGIES CORP11 citations74
US4385356AMay 24, 1983

Non-saturating airspeed/attitude controls

UNITED TECHNOLOGIES CORP15 citations74
US4383299AMay 10, 1983

Command-inhibited aircraft attitude reference adjustment

UNITED TECHNOLOGIES CORP14 citations74
US4371939AFeb 1, 1983

Roll attitude inhibit of aircraft coordinated turn disengagement

UNITED TECHNOLOGIES CORP18 citations74
US4371938AFeb 1, 1983

Automatic airspeed engage/disengage

UNITED TECHNOLOGIES CORP12 citations74
US4371936AFeb 1, 1983

Attitude trimmed airspeed/attitude controls

UNITED TECHNOLOGIES CORP11 citations74
US4371937AFeb 1, 1983

Retaining airspeed hold engagement in low speed maneuver

UNITED TECHNOLOGIES CORP17 citations74
US4313201AJan 26, 1982

Tested, dissimilar helicopter stability augmentation

UNITED TECHNOLOGIES CORP15 citations71
US4528628AJul 9, 1985

Shutdown monitor for a helicopter pitch bias actuator

UNITED TECHNOLOGIES CORP8 citations70
US4592055AMay 27, 1986

Outer-loop monitor for aircraft automatic flight control system

UNITED TECHNOLOGIES CORP6 citations63
US4417308ANov 22, 1983

Dual inner loop fault inhibit of aircraft outer loop

UNITED TECHNOLOGIES CORP4 citations63
US4387430AJun 7, 1983

Pitch stick force inhibit of aircraft automatic outer loop

UNITED TECHNOLOGIES CORP5 citations63

US NAVY

1 patent