Assignee
SIMPLEXGRINNELL LP
US·53 granted patents·7 pending applications·487 citations·filing 2001–2013
Top patents by PatentIndex Score
60 records- 0189US7688212B2Method and apparatus for providing occupancy information in a fire alarm systemSIMPLEXGRINNELL LP·Filed 2007·Granted Mar 30, 2010·29 cites·21 claims
- 0285US9459208B2Duct detector with remote airflow test capabilitySIMPLEXGRINNELL LP·Filed 2013·Granted Oct 4, 2016·16 cites·19 claims
- 0384US7456585B2Optical element driving circuitSIMPLEXGRINNELL LP·Filed 2006·Granted Nov 25, 2008·12 cites·30 claims
- 0483US7508303B2Alarm system with speakerSIMPLEXGRINNELL LP·Filed 2006·Granted Mar 24, 2009·22 cites·18 claims
- 0581US7167088B2Wireless walk through test systemSIMPLEXGRINNELL LP·Filed 2005·Granted Jan 23, 2007·15 cites·33 claims
- 0680US9076313B2Method for self-testing notification appliances in alarm systemsSIMPLEXGRINNELL LP·Filed 2013·Granted Jul 7, 2015·9 cites·19 claims
- 0780US7474227B2Multiwavelength smoke detector using white light LEDSIMPLEXGRINNELL LP·Filed 2007·Granted Jan 6, 2009·18 cites·36 claims
- 0879US7999666B2Emergency lighting system with improved monitoringSIMPLEXGRINNELL LP·Filed 2008·Granted Aug 16, 2011·15 cites·23 claims
- 0979US7400226B2Emergency lighting system with improved monitoringSIMPLEXGRINNELL LP·Filed 2004·Granted Jul 15, 2008·38 cites·51 claims
- 1078US7714733B2Emergency warning system integrated with building hazard alarm notification systemSIMPLEXGRINNELL LP·Filed 2006·Granted May 11, 2010·13 cites·35 claims
- 1178US7333010B2Method and apparatus for verifying operation of notification appliances during low input voltage conditionSIMPLEXGRINNELL LP·Filed 2005·Granted Feb 19, 2008·16 cites·22 claims
- 1278US6737967B2Wireless walk through test systemSIMPLEXGRINNELL LP·Filed 2002·Granted May 18, 2004·28 cites·29 claims
- 1377US9058731B2Smoke detector with airflow barrierSIMPLEXGRINNELL LP·Filed 2013·Granted Jun 16, 2015·7 cites·14 claims
- 1475US7469204B2Method and apparatus for calculating voltage dropSIMPLEXGRINNELL LP·Filed 2006·Granted Dec 23, 2008·10 cites·21 claims
- 1575US6950016B2Walk through test systemSIMPLEXGRINNELL LP·Filed 2003·Granted Sep 27, 2005·23 cites·31 claims
- 1674US8378806B2Pseudo non-addressable alarm systemSIMPLEXGRINNELL LP·Filed 2010·Granted Feb 19, 2013·5 cites·19 claims
- 1774US8354798B2Compensation circuit for current peaking reduction in notification appliancesSIMPLEXGRINNELL LP·Filed 2011·Granted Jan 15, 2013·4 cites·17 claims
- 1874US7006003B2Multi-candela emergency strobe lightSIMPLEXGRINNELL LP·Filed 2003·Granted Feb 28, 2006·33 cites·29 claims
- 1972US9257032B2System and method for emergency communication in a TCP/IP based redundant fire panel networkSIMPLEXGRINNELL LP·Filed 2013·Granted Feb 9, 2016·5 cites·23 claims
- 2071US9030314B2Method for inspecting and testing notification appliances in alarm systemsSIMPLEXGRINNELL LP·Filed 2013·Granted May 12, 2015·4 cites·25 claims
- 2171US7233253B2Multiwavelength smoke detector using white light LEDSIMPLEXGRINNELL LP·Filed 2004·Granted Jun 19, 2007·25 cites·22 claims
- 2269US8994525B2Method for testing notification appliances in alarm systemsSIMPLEXGRINNELL LP·Filed 2013·Granted Mar 31, 2015·3 cites·19 claims
- 2368US9374239B2Alarm system network operationSIMPLEXGRINNELL LP·Filed 2013·Granted Jun 21, 2016·2 cites·24 claims
- 2468US9007201B2Method for self-testing notification appliances in alarm systemsSIMPLEXGRINNELL LP·Filed 2013·Granted Apr 14, 2015·3 cites·9 claims
- 2567US8373420B2Ground fault detectionSIMPLEXGRINNELL LP·Filed 2009·Granted Feb 12, 2013·12 cites·21 claims
- 2666US8558472B2Compensation circuit for current peaking reduction in notification appliancesSIMPLEXGRINNELL LP·Filed 2012·Granted Oct 15, 2013·2 cites·21 claims
- 2766US7369037B2Programmable multicandela notification deviceSIMPLEXGRINNELL LP·Filed 2004·Granted May 6, 2008·14 cites·25 claims
- 2865US9076321B2Real time control chart generation and monitoring of safety systemsSIMPLEXGRINNELL LP·Filed 2013·Granted Jul 7, 2015·2 cites·18 claims
- 2964US9076319B2User interface broker for fire alarm systemsSIMPLEXGRINNELL LP·Filed 2012·Granted Jul 7, 2015·4 cites·23 claims
- 3064US7619534B2Method and apparatus for detection of hazardous or potentially hazardous conditionsSIMPLEXGRINNELL LP·Filed 2006·Granted Nov 17, 2009·7 cites·18 claims
- 3164US7459881B2Method and apparatus for monitoring battery back-up power in an alarm systemSIMPLEXGRINNELL LP·Filed 2006·Granted Dec 2, 2008·6 cites·26 claims
- 3264US7091855B2Fire alarm with distinct alarm reset thresholdSIMPLEXGRINNELL LP·Filed 2003·Granted Aug 15, 2006·13 cites·24 claims
- 3363US9814157B2Wire management and wire entry cover bracketSIMPLEXGRINNELL LP·Filed 2013·Granted Nov 7, 2017·3 cites·18 claims
- 3463US8368528B2Configurable notification deviceSIMPLEXGRINNELL LP·Filed 2009·Granted Feb 5, 2013·2 cites·26 claims
- 3563US8023661B2Self-adjusting and self-modifying addressable speakerSIMPLEXGRINNELL LP·Filed 2008·Granted Sep 20, 2011·4 cites·20 claims
- 3663US7667577B2Tuning algorithm for clock source frequency driftSIMPLEXGRINNELL LP·Filed 2007·Granted Feb 23, 2010·6 cites·20 claims
- 3763US7382245B2Method and apparatus for indicating a power condition at a notification applianceSIMPLEXGRINNELL LP·Filed 2005·Granted Jun 3, 2008·11 cites·20 claims
- 3861US7886868B2Self-draining grill and system incorporating the sameSIMPLEXGRINNELL LP·Filed 2008·Granted Feb 15, 2011·5 cites·25 claims
- 3961US7532117B2Fire alarm with distinct alarm reset thresholdSIMPLEXGRINNELL LP·Filed 2006·Granted May 12, 2009·2 cites·32 claims
- 4060US7570672B2Fiber optic multiplex modemSIMPLEXGRINNELL LP·Filed 2004·Granted Aug 4, 2009·4 cites·15 claims
- 4160US7471049B2Optical element driving circuitSIMPLEXGRINNELL LP·Filed 2006·Granted Dec 30, 2008·1 cites·25 claims
- 4256US8049632B2Switchable strobe lensSIMPLEXGRINNELL LP·Filed 2008·Granted Nov 1, 2011·0 cites·16 claims
- 4355US10044178B2Notification appliance enclosureSIMPLEXGRINNELL LP·Filed 2013·Granted Aug 7, 2018·1 cites·11 claims
- 4455US7994729B2Optical element driving circuitSIMPLEXGRINNELL LP·Filed 2008·Granted Aug 9, 2011·1 cites·21 claims
- 4555US7145466B2National security warning system integrated with building fire alarm notification systemSIMPLEXGRINNELL LP·Filed 2004·Granted Dec 5, 2006·9 cites·40 claims
- 4651US8383967B2Method and apparatus for indicia selectionSIMPLEXGRINNELL LP·Filed 2010·Granted Feb 26, 2013·2 cites·17 claims
- 4750US9293031B2System and method for using customer data networks for alarm systemsSIMPLEXGRINNELL LP·Filed 2013·Granted Mar 22, 2016·0 cites·20 claims
- 4850US7295127B2National security warning system integrated with building fire alarm notification systemSIMPLEXGRINNELL LP·Filed 2003·Granted Nov 13, 2007·2 cites·57 claims
- 4950US7170396B2Addressable smart speakerSIMPLEXGRINNELL LP·Filed 2004·Granted Jan 30, 2007·8 cites·26 claims
- 5050US6452491B1Amplifier and heat sink configurationSIMPLEXGRINNELL LP·Filed 2001·Granted Sep 17, 2002·2 cites·15 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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