Inventor
BARRIEAU MARK P
US20 patents
⚠️ This page may combine multiple inventors who share the name “BARRIEAU MARK P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIMPLEXGRINNELL LP
8 patentsUS7400226B2Jul 15, 2008
Emergency lighting system with improved monitoring
SIMPLEXGRINNELL LP38 citations90
US7999666B2Aug 16, 2011
Emergency lighting system with improved monitoring
SIMPLEXGRINNELL LP15 citations82
US7091855B2Aug 15, 2006
Fire alarm with distinct alarm reset threshold
SIMPLEXGRINNELL LP13 citations82
US7333010B2Feb 19, 2008
Method and apparatus for verifying operation of notification appliances during low input voltage condition
SIMPLEXGRINNELL LP16 citations80
US7619534B2Nov 17, 2009
Method and apparatus for detection of hazardous or potentially hazardous conditions
SIMPLEXGRINNELL LP7 citations65
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
US7251742B2Jul 31, 2007
Method and apparatus for determining mis-wired addressable loops
SIMPLEXGRINNELL LP3 citations55
SIMPLEX TIME RECORDER CO
4 patentsUS6281789B1Aug 28, 2001
Alarm system having improved control of notification appliances over common power lines
SIMPLEX TIME RECORDER CO29 citations92
US6567001B1May 20, 2003
Fire control panel monitoring for degradation of wiring integrity during alarm state
SIMPLEX TIME RECORDER CO35 citations91
US5966002AOct 12, 1999
Method and apparatus for adapting voltage control in alarm systems
SIMPLEX TIME RECORDER CO27 citations90
US6034601AMar 7, 2000
Method and apparatus for determining proper installation of alarm devices
SIMPLEX TIME RECORDER CO13 citations71