Inventor
MARMAN DOUGLAS H
US36 patents
⚠️ This page may combine multiple inventors who share the name “MARMAN DOUGLAS H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SENTROL INC
8 patentsUS5546074AAug 13, 1996
Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy
SENTROL INC252 citations97
US5708414AJan 13, 1998
Sensitivity fault indication technique implemented in smoke detector system with self-diagnostic capabilities
SENTROL INC60 citations93
US5311024AMay 10, 1994
Lens arrangement for intrusion detection device
SENTROL INC43 citations92
US4837558AJun 6, 1989
Glass break detector
SENTROL INC33 citations92
US4745398AMay 17, 1988
Self-powered sensor for use in closed-loop security system
SENTROL INC46 citations92
US5565852AOct 15, 1996
Smoke detector with digital display
SENTROL INC37 citations91
US5026990AJun 25, 1991
Method and apparatus for installing infrared sensors in intrusion detection systems
SENTROL INC47 citations89
US5804891ASep 8, 1998
Battery saving switching mechanism
SENTROL INC11 citations64
MARMAN DOUGLAS H
6 patentsUS9584710B2Feb 28, 2017
Intelligent high resolution video system
MARMAN DOUGLAS H19 citations92
US8872940B2Oct 28, 2014
Content aware storage of video data
MARMAN DOUGLAS H18 citations92
US8736701B2May 27, 2014
Video camera having relational video database with analytics-produced metadata
MARMAN DOUGLAS H17 citations92
US10645344B2May 5, 2020
Video system with intelligent visual display
MARMAN DOUGLAS H50 citations90
US9215781B2Dec 15, 2015
Energy savings and improved security through intelligent lighting systems
MARMAN DOUGLAS H13 citations84
US8427552B2Apr 23, 2013
Extending the operational lifetime of a hard-disk drive used in video data storage applications
MARMAN DOUGLAS H13 citations84
GEN ELECTRIC
5 patentsUS6441723B1Aug 27, 2002
Highly reliable power line communications system
GEN ELECTRIC645 citations98
US6822555B2Nov 23, 2004
Fire system implemented with power line communications
GEN ELECTRIC91 citations96
US6911907B2Jun 28, 2005
System and method of providing security for a site
GEN ELECTRIC39 citations92
US7019683B2Mar 28, 2006
Shipping container security system
GEN ELECTRIC43 citations90
US7493100B2Feb 17, 2009
Compensating for dynamic nulls in a power line communication system
GEN ELECTRIC8 citations84
GE SECURITY INC
4 patentsUS7339466B2Mar 4, 2008
Power line communication system with system member identification
GE SECURITY INC276 citations96
US7564365B2Jul 21, 2009
Smoke detector and method of detecting smoke
GE SECURITY INC22 citations92
US7075445B2Jul 11, 2006
Rapidly responding, false detection immune alarm signal producing smoke detector
GE SECURITY INC26 citations90
US7034663B2Apr 25, 2006
Preventing unintended communication among power line communication devices associated with different premises power distribution lines of an electric power distribution system
GE SECURITY INC24 citations90
AVIGILON PATENT HOLDING 2 CORP
4 patentsUS9412269B2Aug 9, 2016
Object detection based on image pixels
AVIGILON PATENT HOLDING 2 CORP27 citations94
US9412268B2Aug 9, 2016
Vehicle detection and counting
AVIGILON PATENT HOLDING 2 CORP15 citations92
US9449510B2Sep 20, 2016
Selective object detection
AVIGILON PATENT HOLDING 2 CORP5 citations84
US9449398B2Sep 20, 2016
Directional object detection
AVIGILON PATENT HOLDING 2 CORP6 citations84
AVIGILON ANALYTICS CORP
3 patentsUS10735671B2Aug 4, 2020
Intelligent high resolution video system
AVIGILON ANALYTICS CORP6 citations84
US9721168B2Aug 1, 2017
Directional object detection
AVIGILON ANALYTICS CORP5 citations84
US10706698B2Jul 7, 2020
Energy savings and improved security through intelligent lighting systems
AVIGILON ANALYTICS CORP0 citations52