Inventor
FLINT JOHN R
22 patents
Patents
22 patentsUS4174890ANov 20, 1979
Electronically controlled microfilm photographic image utilization device
BELL & HOWELL CO34 citations91
US4200224AApr 29, 1980
Method and system for isolating faults in a microprocessor and a machine controlled by the microprocessor
BELL & HOWELL CO23 citations82
US4174891ANov 20, 1979
Microfilm reader/printer
BELL & HOWELL CO22 citations80
US4110020AAug 29, 1978
Electronically controlled microfilm photographic image utilization device
BELL & HOWELL CO25 citations80
US4101808AJul 18, 1978
Lamp control circuit
BELL & HOWELL CO13 citations73
US4066349AJan 3, 1978
Information retrieval system having ramp motor control
BELL & HOWELL CO7 citations73
US4027154AMay 31, 1977
Electronic document detector circuitry with feedback control
BELL & HOWELL CO8 citations73
US4121138AOct 17, 1978
Servo system
BELL & HOWELL CO10 citations72
US4459475AJul 10, 1984
Automatic calibration for D.C. transducers
BELL & HOWELL CO17 citations71
US4148579AApr 10, 1979
Automatic microfilm camera
BELL & HOWELL CO17 citations71
US4124290ANov 7, 1978
System for interfacing an automatic processing machine with a stack of documents which it is processing
BELL & HOWELL CO9 citations71
US4363457ADec 14, 1982
Web tensioning system
BELL & HOWELL CO7 citations68
US4066872AJan 3, 1978
Information retrieval system with expanded logic capability
BELL & HOWELL CO8 citations66
US4254364AMar 3, 1981
Lamp regulator circuit for rotary camera
BELL & HOWELL CO10 citations65
US4241992ADec 30, 1980
Recorded image detection system for updatable microfilm
BELL & HOWELL CO8 citations65
US4146824AMar 27, 1979
Low speed servo control
BELL & HOWELL CO4 citations63
US4101763AJul 18, 1978
Control system for an image detector
BELL & HOWELL CO3 citations63
US4074853AFeb 21, 1978
Dual function probe
BELL & HOWELL CO4 citations62
US4448364AMay 15, 1984
Reversible ribbon drive
BELL & HOWELL CO2 citations60
US4093376AJun 6, 1978
Automatic exposure control
BELL & HOWELL CO6 citations54
US4699504AOct 13, 1987
Control system for microimage recorders
BELL & HOWELL CO2 citations53
US4209238AJun 24, 1980
Microfilm transport with shuttered lens and glass flat control
BELL & HOWELL CO0 citations34