Assignee
SIMPLEXGRINNELL LP
US53 patents
Top patents by PatentIndex Score
US7688212B2Mar 30, 2010
Method and apparatus for providing occupancy information in a fire alarm system
SIMPLEXGRINNELL LP29 citations92
US6950016B2Sep 27, 2005
Walk through test system
SIMPLEXGRINNELL LP23 citations92
US6737967B2May 18, 2004
Wireless walk through test system
SIMPLEXGRINNELL LP28 citations92
US7508303B2Mar 24, 2009
Alarm system with speaker
SIMPLEXGRINNELL LP22 citations90
US7400226B2Jul 15, 2008
Emergency lighting system with improved monitoring
SIMPLEXGRINNELL LP38 citations90
US7006003B2Feb 28, 2006
Multi-candela emergency strobe light
SIMPLEXGRINNELL LP33 citations89
US7474227B2Jan 6, 2009
Multiwavelength smoke detector using white light LED
SIMPLEXGRINNELL LP18 citations88
US7233253B2Jun 19, 2007
Multiwavelength smoke detector using white light LED
SIMPLEXGRINNELL LP25 citations88
US7167088B2Jan 23, 2007
Wireless walk through test system
SIMPLEXGRINNELL LP15 citations84
US9459208B2Oct 4, 2016
Duct detector with remote airflow test capability
SIMPLEXGRINNELL LP16 citations82
US9076313B2Jul 7, 2015
Method for self-testing notification appliances in alarm systems
SIMPLEXGRINNELL LP9 citations82
US7999666B2Aug 16, 2011
Emergency lighting system with improved monitoring
SIMPLEXGRINNELL LP15 citations82
US7714733B2May 11, 2010
Emergency warning system integrated with building hazard alarm notification system
SIMPLEXGRINNELL LP13 citations82
US7091855B2Aug 15, 2006
Fire alarm with distinct alarm reset threshold
SIMPLEXGRINNELL LP13 citations82
US7369037B2May 6, 2008
Programmable multicandela notification device
SIMPLEXGRINNELL LP14 citations81
US7333010B2Feb 19, 2008
Method and apparatus for verifying operation of notification appliances during low input voltage condition
SIMPLEXGRINNELL LP16 citations80
US7456585B2Nov 25, 2008
Optical element driving circuit
SIMPLEXGRINNELL LP12 citations79
US9058731B2Jun 16, 2015
Smoke detector with airflow barrier
SIMPLEXGRINNELL LP7 citations75
US8378806B2Feb 19, 2013
Pseudo non-addressable alarm system
SIMPLEXGRINNELL LP5 citations73
US7469204B2Dec 23, 2008
Method and apparatus for calculating voltage drop
SIMPLEXGRINNELL LP10 citations73
US9257032B2Feb 9, 2016
System and method for emergency communication in a TCP/IP based redundant fire panel network
SIMPLEXGRINNELL LP5 citations71
US9030314B2May 12, 2015
Method for inspecting and testing notification appliances in alarm systems
SIMPLEXGRINNELL LP4 citations71
US8373420B2Feb 12, 2013
Ground fault detection
SIMPLEXGRINNELL LP12 citations70
US7382245B2Jun 3, 2008
Method and apparatus for indicating a power condition at a notification appliance
SIMPLEXGRINNELL LP11 citations69
US7145466B2Dec 5, 2006
National security warning system integrated with building fire alarm notification system
SIMPLEXGRINNELL LP9 citations68
US7170396B2Jan 30, 2007
Addressable smart speaker
SIMPLEXGRINNELL LP8 citations66
US9076319B2Jul 7, 2015
User interface broker for fire alarm systems
SIMPLEXGRINNELL LP4 citations65
US7619534B2Nov 17, 2009
Method and apparatus for detection of hazardous or potentially hazardous conditions
SIMPLEXGRINNELL LP7 citations65
US9814157B2Nov 7, 2017
Wire management and wire entry cover bracket
SIMPLEXGRINNELL LP3 citations64
US9374239B2Jun 21, 2016
Alarm system network operation
SIMPLEXGRINNELL LP2 citations62
US9076321B2Jul 7, 2015
Real time control chart generation and monitoring of safety systems
SIMPLEXGRINNELL LP2 citations62
US8368528B2Feb 5, 2013
Configurable notification device
SIMPLEXGRINNELL LP2 citations62
US7459881B2Dec 2, 2008
Method and apparatus for monitoring battery back-up power in an alarm system
SIMPLEXGRINNELL LP6 citations62
US7532117B2May 12, 2009
Fire alarm with distinct alarm reset threshold
SIMPLEXGRINNELL LP2 citations61
US6452491B1Sep 17, 2002
Amplifier and heat sink configuration
SIMPLEXGRINNELL LP2 citations61
US9007201B2Apr 14, 2015
Method for self-testing notification appliances in alarm systems
SIMPLEXGRINNELL LP3 citations60
US8994525B2Mar 31, 2015
Method for testing notification appliances in alarm systems
SIMPLEXGRINNELL LP3 citations60
US7295127B2Nov 13, 2007
National security warning system integrated with building fire alarm notification system
SIMPLEXGRINNELL LP2 citations60
US7570672B2Aug 4, 2009
Fiber optic multiplex modem
SIMPLEXGRINNELL LP4 citations59
US8023661B2Sep 20, 2011
Self-adjusting and self-modifying addressable speaker
SIMPLEXGRINNELL LP4 citations58
US8558472B2Oct 15, 2013
Compensation circuit for current peaking reduction in notification appliances
SIMPLEXGRINNELL LP2 citations56
US8354798B2Jan 15, 2013
Compensation circuit for current peaking reduction in notification appliances
SIMPLEXGRINNELL LP4 citations56
US7886868B2Feb 15, 2011
Self-draining grill and system incorporating the same
SIMPLEXGRINNELL LP5 citations55
US7251742B2Jul 31, 2007
Method and apparatus for determining mis-wired addressable loops
SIMPLEXGRINNELL LP3 citations55
US7667577B2Feb 23, 2010
Tuning algorithm for clock source frequency drift
SIMPLEXGRINNELL LP6 citations54
US10044178B2Aug 7, 2018
Notification appliance enclosure
SIMPLEXGRINNELL LP1 citations52
US9293031B2Mar 22, 2016
System and method for using customer data networks for alarm systems
SIMPLEXGRINNELL LP0 citations52
US8049632B2Nov 1, 2011
Switchable strobe lens
SIMPLEXGRINNELL LP0 citations52
US7753709B2Jul 13, 2010
Call cord connection system with mechanical coupling mechanism
SIMPLEXGRINNELL LP4 citations50
US7471049B2Dec 30, 2008
Optical element driving circuit
SIMPLEXGRINNELL LP1 citations47
Showing the top 50 of 53 patents by PatentIndex Score.