Bird; Douglas D.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Bird; Douglas D..The latest application filed is for "method and system for starting an intermittent flame-powered pilot combustion system".

Company Profile

2.20.10

Bird; Douglas D. - Little Canada MN
Bird; Douglas D. - Dayton MN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method and system for starting an intermittent flame-powered pilot combustion system Grant 11,268,695 - Chian , et al. March 8, 2	2022-03-08
Method And System For Starting An Intermittent Flame-powered Pilot Combustion System App 20200025375 - Chian; Brent ; et al.	2020-01-23
Selectable efficiency versus comfort for modulating furnace Grant 10,337,747 - Nordberg , et al.	2019-07-02
Selectable Efficiency Versus Comfort For Modulating Furnace App 20160209054 - Nordberg; Timothy J. ; et al.	2016-07-21
Selectable efficiency versus comfort for modulating furnace Grant 9,316,413 - Nordberg , et al. April 19, 2	2016-04-19
Burner firing rate determination for modulating furnace Grant 8,764,435 - Nordberg , et al. July 1, 2	2014-07-01
Burner Firing Rate Determination For Modulating Furnace App 20120130542 - Nordberg; Timothy J. ; et al.	2012-05-24
Burner firing rate determination for modulating furnace Grant 8,123,518 - Nordberg , et al. February 28, 2	2012-02-28
Temperature sensor diagnostic for determining water heater health status Grant 7,804,047 - Zak , et al. September 28, 2	2010-09-28
Dual armature solenoid valve assembly Grant 7,741,941 - Buezis , et al. June 22, 2	2010-06-22
Burner Firing Rate Determination For Modulating Furnace App 20100009302 - Nordberg; Timothy J. ; et al.	2010-01-14
Selectable Efficiency Versus Comfort For Modulating Furnace App 20090308372 - Nordberg; Timothy J. ; et al.	2009-12-17
Dual Armature Solenoid Valve Assembly App 20080129432 - Buezis; James G. ; et al.	2008-06-05
Low voltage DC-DC converter Grant 7,170,762 - Chian , et al. January 30, 2	2007-01-30
Method and apparatus for safety switch Grant 6,959,876 - Chian , et al. November 1, 2	2005-11-01
Temperature controlled burner apparatus Grant 6,881,055 - Bird April 19, 2	2005-04-19
Senor diagnostic for determining water heater health status App 20050077368 - Zak, Robert L. ; et al.	2005-04-14
Low voltage DC-DC converter App 20050041437 - Chian, Brent ; et al.	2005-02-24
Method and apparatus for safety switch App 20040211845 - Chain, Brent ; et al.	2004-10-28
Temperature controlled burner apparatus App 20040202975 - Bird, Douglas D.	2004-10-14
Electronic fuel convertibility selection Grant 6,428,308 - Bird , et al. August 6, 2	2002-08-06
Motor step-less speed control with active feedback of phase detector Grant 6,346,789 - Bird , et al. February 12, 2	2002-02-12
Over temperature limiting scheme by reducing gas pressure Grant 6,280,179 - Bird August 28, 2	2001-08-28
Pilot flame powered burner controller with remote control operation Grant 6,261,087 - Bird , et al. July 17, 2	2001-07-17
Humidity sensing circuit Grant 5,757,195 - Bird May 26, 1	1998-05-26
Method of maximizing the efficiency of an environmental control system including a programmable thermostat Grant 5,361,983 - Bird November 8, 1	1994-11-08
Setback thermostat with recovery start time selected non-linearly Grant 5,025,984 - Bird , et al. June 25, 1	1991-06-25
Thermostat with means for disabling PID control Grant 4,991,770 - Bird , et al. February 12, 1	1991-02-12

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