Inventor
FIELD D GEORGE
US25 patents
⚠️ This page may combine multiple inventors who share the name “FIELD D GEORGE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WON DOOR CORP
13 patentsUS7478663B2Jan 20, 2009
Method, apparatus and system for directionally controlling a movable partition
WON DOOR CORP59 citations98
US6662848B2Dec 16, 2003
Automatic door and method of operating same
WON DOOR CORP91 citations97
US7845385B2Dec 7, 2010
Steerable trollies for movable partitions, partition systems including steerable trolleys, and methods of closing partitions
WON DOOR CORP43 citations96
US7513293B2Apr 7, 2009
Method and apparatus for directionally controlling a movable partition
WON DOOR CORP50 citations96
US7066297B2Jun 27, 2006
Automatic door and method of operating same
WON DOOR CORP55 citations95
US7782019B2Aug 24, 2010
Method and apparatus for battery-backed power supply and battery charging
WON DOOR CORP21 citations92
US7740046B2Jun 22, 2010
Method, apparatus and system for controlling a movable partition
WON DOOR CORP33 citations92
US7737860B2Jun 15, 2010
Systems and methods for monitoring automatic doors
WON DOOR CORP42 citations92
US7656129B2Feb 2, 2010
Method and apparatus for battery-backed power supply and battery charging
WON DOOR CORP33 citations92
US7050283B2May 23, 2006
Method and apparatus for protecting monitor circuit from fault condition
WON DOOR CORP26 citations92
US7190132B2Mar 13, 2007
Method and apparatus for motor control using relays
WON DOOR CORP25 citations89
US8757238B2Jun 24, 2014
Method, apparatus and system for controlling a movable partition
WON DOOR CORP9 citations84
US8368340B2Feb 5, 2013
Methods, systems, and devices for a motor control system
WON DOOR CORP0 citations52
ATWOOD IND INC
3 patentsUS5650054AJul 22, 1997
Low cost room temperature electrochemical carbon monoxide and toxic gas sensor with humidity compensation based on protonic conductive membranes
ATWOOD IND INC102 citations97
US5526280AJun 11, 1996
Method and system for gas detection
ATWOOD IND INC116 citations97
US5632614AMay 27, 1997
Gas fired appliance igntion and combustion monitoring system
ATWOOD IND INC63 citations94
COLEMAN W MICHAEL
2 patentsUS8278862B2Oct 2, 2012
Motor control systems, foldable partitions employing motor control systems, methods of monitoring the operation of electric motors and foldable partitions
COLEMAN W MICHAEL9 citations83
US8522853B2Sep 3, 2013
Closure assemblies for fire doors, fire doors including such closure assemblies and methods of locking fire doors
COLEMAN W MICHAEL5 citations72