Assignee
DETECTION SYSTEMS INC
US·62 granted patents·3,285 citations·filing 1975–2000
Top patents by PatentIndex Score
62 records- 0197US5604493ASecurity system transmitter with opposed concave actuatorsDETECTION SYSTEMS INC·Filed 1995·Granted Feb 18, 1997·223 cites·15 claims
- 0294US5578989APersonal security system with system wide testingDETECTION SYSTEMS INC·Filed 1995·Granted Nov 26, 1996·240 cites·4 claims
- 0394US5083106AIntruder detection system with programmable countdown timer for self-supervisionDETECTION SYSTEMS INC·Filed 1991·Granted Jan 21, 1992·221 cites·7 claims
- 0490US5774051ASecurity system with multi-function transmitterDETECTION SYSTEMS INC·Filed 1995·Granted Jun 30, 1998·221 cites·22 claims
- 0590US5717378ASecurity system with fall back to local controlDETECTION SYSTEMS INC·Filed 1996·Granted Feb 10, 1998·217 cites·6 claims
- 0688US4660024ADual technology intruder detection systemDETECTION SYSTEMS INC·Filed 1985·Granted Apr 21, 1987·93 cites·7 claims
- 0788USD261740SIntruder detector housingDETECTION SYSTEMS INC·Filed 1979·Granted Nov 10, 1981·22 cites·1 claims
- 0888US4225786AInfrared detection systemDETECTION SYSTEMS INC·Filed 1978·Granted Sep 30, 1980·54 cites·14 claims
- 0987US5572192APersonal security system with guard tour featuresDETECTION SYSTEMS INC·Filed 1994·Granted Nov 5, 1996·103 cites·4 claims
- 1085US5943394AEvent detection system with dialer interceptDETECTION SYSTEMS INC·Filed 1998·Granted Aug 24, 1999·242 cites·24 claims
- 1185US5115224APersonal security system networkDETECTION SYSTEMS INC·Filed 1991·Granted May 19, 1992·102 cites·13 claims
- 1285US4442359AMultiple field-of-view optical systemDETECTION SYSTEMS INC·Filed 1982·Granted Apr 10, 1984·51 cites·9 claims
- 1384US5467074APersonal security system with transmitter test modeDETECTION SYSTEMS INC·Filed 1993·Granted Nov 14, 1995·72 cites·15 claims
- 1484US5400014ASmoke detector with dark chamberDETECTION SYSTEMS INC·Filed 1993·Granted Mar 21, 1995·84 cites·5 claims
- 1583US5650766AWearable transmitter with optical tamper detectionDETECTION SYSTEMS INC·Filed 1995·Granted Jul 22, 1997·88 cites·8 claims
- 1682US6163257ASecurity system having event detectors and keypads with integral monitorDETECTION SYSTEMS INC·Filed 1997·Granted Dec 19, 2000·99 cites·15 claims
- 1781US4224608ASingle terminal detection systemDETECTION SYSTEMS INC·Filed 1978·Granted Sep 23, 1980·34 cites·3 claims
- 1880US6493435B1Alarm system interfaceDETECTION SYSTEMS INC·Filed 2000·Granted Dec 10, 2002·28 cites·17 claims
- 1980US6268797B1Integrated portable tracking signal and access authorization signal generatorDETECTION SYSTEMS INC·Filed 2000·Granted Jul 31, 2001·54 cites·10 claims
- 2080US5077548ADual technology intruder detection system with sensitivity adjustment after "default"DETECTION SYSTEMS INC·Filed 1990·Granted Dec 31, 1991·71 cites·12 claims
- 2180US4764755AIntruder detection system with false-alarm-minimizing circuitryDETECTION SYSTEMS INC·Filed 1987·Granted Aug 16, 1988·56 cites·4 claims
- 2278US5523740AWearable transmitter assemblyDETECTION SYSTEMS INC·Filed 1995·Granted Jun 4, 1996·86 cites·25 claims
- 2375US5705988APhotoelectric smoke detector with count based A/D and D/A converterDETECTION SYSTEMS INC·Filed 1996·Granted Jan 6, 1998·66 cites·3 claims
- 2475US5552765ASmoke detector with individually stored range of acceptable sensitivityDETECTION SYSTEMS INC·Filed 1993·Granted Sep 3, 1996·49 cites·5 claims
- 2570US5268668ASecurity/fire alarm system with group-addressing remote sensorsDETECTION SYSTEMS INC·Filed 1992·Granted Dec 7, 1993·44 cites·7 claims
- 2668US5670943APet immune intruder detectionDETECTION SYSTEMS INC·Filed 1996·Granted Sep 23, 1997·44 cites·21 claims
- 2768US5581237AMicrowave intrusion detector with threshold adjustment in response to periodic signalsDETECTION SYSTEMS INC·Filed 1994·Granted Dec 3, 1996·39 cites·4 claims
- 2868US5543777ASmoke detector with individual sensitivity calibration and monitoringDETECTION SYSTEMS INC·Filed 1993·Granted Aug 6, 1996·36 cites·16 claims
- 2968US4963749AQuad element intrusion detectionDETECTION SYSTEMS INC·Filed 1989·Granted Oct 16, 1990·33 cites·8 claims
- 3066US5233640ASecurity system with backup dialerDETECTION SYSTEMS INC·Filed 1991·Granted Aug 3, 1993·46 cites·9 claims
- 3166US4864136APassive infrared detection system with three-element, single-channel, pyroelectric detectorDETECTION SYSTEMS INC·Filed 1988·Granted Sep 5, 1989·32 cites·20 claims
- 3262USD378369SWireless communicatorDETECTION SYSTEMS INC·Filed 1995·Granted Mar 11, 1997·12 cites·1 claims
- 3362US4746906ADual technology intruder detection system with modular opticsDETECTION SYSTEMS INC·Filed 1986·Granted May 24, 1988·26 cites·3 claims
- 3460US6326905B1Coded rotary switch with contacts at common radiusDETECTION SYSTEMS INC·Filed 1999·Granted Dec 4, 2001·16 cites·20 claims
- 3560US4920268APassive infrared detection system with substantially uniform sensitivity over multiple detection zonesDETECTION SYSTEMS INC·Filed 1989·Granted Apr 24, 1990·23 cites·8 claims
- 3658US5721529AIndividual smoke detector with stored range of acceptable sensitivityDETECTION SYSTEMS INC·Filed 1996·Granted Feb 24, 1998·25 cites·5 claims
- 3757US5898367APersonal security system with weighted receiver locationsDETECTION SYSTEMS INC·Filed 1996·Granted Apr 27, 1999·25 cites·2 claims
- 3857US5691699ASecurity detector with optical data transmitterDETECTION SYSTEMS INC·Filed 1996·Granted Nov 25, 1997·34 cites·19 claims
- 3953US5450061AGlass break detection using temporal sequence of selected frequency characteristicsDETECTION SYSTEMS INC·Filed 1994·Granted Sep 12, 1995·17 cites·7 claims
- 4053US5438317AGlass break detection with noise riding featureDETECTION SYSTEMS INC·Filed 1994·Granted Aug 1, 1995·20 cites·26 claims
- 4152US5699043AIndividual smoke detector with sensitivity calibration and monitoringDETECTION SYSTEMS INC·Filed 1996·Granted Dec 16, 1997·18 cites·16 claims
- 4252US5552770AGlass break detection using multiple frequency rangesDETECTION SYSTEMS INC·Filed 1995·Granted Sep 3, 1996·20 cites·17 claims
- 4352US5450062ADetection system with reduced sensitivity to pin diode effectDETECTION SYSTEMS INC·Filed 1994·Granted Sep 12, 1995·19 cites·14 claims
- 4452US5216388AMicrowave oscillator with temperature compensationDETECTION SYSTEMS INC·Filed 1991·Granted Jun 1, 1993·15 cites·19 claims
- 4551US6493687B1Apparatus and method for detecting glass breakDETECTION SYSTEMS INC·Filed 1999·Granted Dec 10, 2002·19 cites·43 claims
- 4651US5416466APersonal security system with fixed testing transmittersDETECTION SYSTEMS INC·Filed 1994·Granted May 16, 1995·27 cites·8 claims
- 4749USD358351SSmoke detector housingDETECTION SYSTEMS INC·Filed 1994·Granted May 16, 1995·6 cites·1 claims
- 4848US4173717AOptical assemblyDETECTION SYSTEMS INC·Filed 1978·Granted Nov 6, 1979·7 cites·9 claims
- 4946USD358352SSmoke detector housingDETECTION SYSTEMS INC·Filed 1994·Granted May 16, 1995·5 cites·1 claims
- 5046US5382944ASupervised PIR motion-detection systemDETECTION SYSTEMS INC·Filed 1992·Granted Jan 17, 1995·14 cites·7 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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