Assignee
DETECTOR ELECTRONICS
US24 patents
Top patents by PatentIndex Score
US4462319AJul 31, 1984
Method and apparatus for safely controlling explosions in black liquor recovery boilers
DETECTOR ELECTRONICS66 citations95
US5995008ANov 30, 1999
Fire detection method and apparatus using overlapping spectral bands
DETECTOR ELECTRONICS58 citations93
US5475222ADec 12, 1995
Ruggedized gas detector
DETECTOR ELECTRONICS27 citations92
US5237512AAug 17, 1993
Signal recognition and classification for identifying a fire
DETECTOR ELECTRONICS21 citations91
US4547673AOct 15, 1985
Smoke and flame detector
DETECTOR ELECTRONICS46 citations90
US7155029B2Dec 26, 2006
Method and apparatus of detecting fire by flame imaging
DETECTOR ELECTRONICS25 citations86
US5434560AJul 18, 1995
System for detecting random events
DETECTOR ELECTRONICS34 citations86
US4826316AMay 2, 1989
Radiation detection apparatus
DETECTOR ELECTRONICS24 citations84
US5850182ADec 15, 1998
Dual wavelength fire detection method and apparatus
DETECTOR ELECTRONICS38 citations81
US3952196AApr 20, 1976
Radiation detection apparatus
DETECTOR ELECTRONICS29 citations81
US4405234ASep 20, 1983
Radiation detection apparatus having refractive light checking feature
DETECTOR ELECTRONICS20 citations79
US5006710AApr 9, 1991
Recognition and processing of waveforms
DETECTOR ELECTRONICS9 citations71
US5804825ASep 8, 1998
Fire detector having wide-range sensitivity
DETECTOR ELECTRONICS14 citations69
US5473752ADec 5, 1995
Fault isolation circuit
DETECTOR ELECTRONICS19 citations67
US4581536AApr 8, 1986
Radiation detection tube having spurious radiation shield
DETECTOR ELECTRONICS13 citations66
US7119697B2Oct 10, 2006
Hydrogen fire detection system & method
DETECTOR ELECTRONICS3 citations62
US4742248AMay 3, 1988
Random signal isolation circuit
DETECTOR ELECTRONICS2 citations60
US5218201AJun 8, 1993
Method and apparatus for linearizing photoresistive optical sensors with sensitivity-selective masking
DETECTOR ELECTRONICS2 citations57
US4162425AJul 24, 1979
Ultraviolet detection tube quenching circuitry
DETECTOR ELECTRONICS3 citations57
US4027164AMay 31, 1977
Circuitry for continually monitoring radiation detection systems
DETECTOR ELECTRONICS4 citations57
US5810307ASep 22, 1998
Explosion-proof swivel mounting bracket
DETECTOR ELECTRONICS4 citations54
US9506804B2Nov 29, 2016
Open path gas detector
DETECTOR ELECTRONICS1 citations50
US7726177B2Jun 1, 2010
Environmental hazard sensor
DETECTOR ELECTRONICS1 citations33
US10302609B2May 28, 2019
Calibration for gas detection
DETECTOR ELECTRONICS0 citations20