Inventor
GRIFFITH CARL D
15 patents
⚠️ This page may combine multiple inventors who share the name “GRIFFITH CARL D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPERRY CORP
7 patentsUS4228386AOct 14, 1980
Aircraft servoactuator apparatus
SPERRY CORP47 citations92
US4345195AAug 17, 1982
Strapdown multifunction servoactuator apparatus for aircraft
SPERRY CORP73 citations91
US4603388AJul 29, 1986
VTOL altitude hold system with automatic ground effect compensation
SPERRY CORP20 citations81
US4551804ANov 5, 1985
Approach to hover control system for helicopters
SPERRY CORP14 citations74
US4603389AJul 29, 1986
Three cue flight director system for helicopters
SPERRY CORP18 citations72
US4490794ADec 25, 1984
Altitude preselect system for aircraft without air data computer
SPERRY CORP18 citations70
US4460964AJul 17, 1984
Multiaxis hardover protection apparatus for automatic flight control systems
SPERRY CORP9 citations70
SPERRY RAND CORP
3 patentsUS4109886AAug 29, 1978
Semi-automatic flight control system utilizing limited authority stabilization system
SPERRY RAND CORP49 citations88
US4106728AAug 15, 1978
Fail safe force feel system
SPERRY RAND CORP26 citations81
US4017726AApr 12, 1977
Four quadrant rate taker and synchronizer
SPERRY RAND CORP4 citations61
BELL HELICOPTER TEXTRON INC
3 patentsUS9870004B2Jan 16, 2018
High authority stability and control augmentation system
BELL HELICOPTER TEXTRON INC4 citations72
US9868522B2Jan 16, 2018
Rotorcraft autopilot control
BELL HELICOPTER TEXTRON INC2 citations67
US10712752B2Jul 14, 2020
High authority stability and control augmentation system
BELL HELICOPTER TEXTRON INC0 citations51