Inventor
Douglas D. Bird
Inventor
Little Canada, MN, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F23Nprimary
F23NRegulating or controlling combustion20%
F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general14%
F24DDomestic- or space-heating systems, e.g. central heating systems12%
F23QIgnition6%
G05DSystems for controlling or regulating non-electric variables6%
F24CDomestic stoves or ranges4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems4%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications4%
B01LChemical or physical laboratory apparatus for general use2%
PatentTitleYear
10,429,068Method and system for starting an intermittent flame-powered pilot combustion system201910,337,747Selectable efficiency versus comfort for modulating furnace201910,208,954Method and system for controlling an ignition sequence for an intermittent flame-powered pilot combustion system20199,494,320'Method and system for starting an intermittent flame-powered pilot combustion system'20169,316,413'Selectable efficiency versus comfort for modulating furnace'20168,764,435'Burner firing rate determination for modulating furnace'20148,245,987'Mounting bracket for use with a water heater'20128,123,518'Burner firing rate determination for modulating furnace'20127,804,047'Temperature sensor diagnostic for determining water heater health status'20107,741,941'Dual armature solenoid valve assembly'20107,485,153'Fluid free interface for a fluidic analyzer'20097,170,762'Low voltage DC-DC converter'20076,959,876'Method and apparatus for safety switch'20056,881,055'Temperature controlled burner apparatus'20056,428,308'Electronic fuel convertibility selection'20026,346,789'Motor step-less speed control with active feedback of phase detector'20026,280,179'Over temperature limiting scheme by reducing gas pressure'20016,261,087'Pilot flame powered burner controller with remote control operation'20015,757,195'Humidity sensing circuit'19985,744,973'Resistance to frequency circuit for measuring ambient temperature on a thermostat'19985,361,983'Method of maximizing the efficiency of an environmental control system including a programmable thermostat'19945,025,984'Setback thermostat with recovery start time selected non-linearly'19914,991,770'Thermostat with means for disabling PID control'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2002Patents assigned to HONEYWELL INC (6)· patent assignee history
1991–1998Based in Dayton, MN, US· patent location history
2001–2016Patents assigned to HONEYWELL INT INC (14)· patent assignee history
2001–2019Based in Little Canada, MN, US· patent location history
2012–2016Patents assigned to BIRD DOUGLAS D (3)· patent assignee history
2012–2016Patents assigned to NORDBERG TIMOTHY J (3)· patent assignee history
2019Patents assigned to ADEMCO INC (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HONEYWELL INT INC | 14 | 2001–2016 |
| HONEYWELL INC | 6 | 1991–2002 |
| ADEMCO INC | 3 | 2019 |
| BIRD DOUGLAS Dself | 3 | 2012–2016 |
| NORDBERG TIMOTHY J | 3 | 2012–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Little Canada, Minnesota, US | 18 | 2001–2019 |
| Dayton, Minnesota, US | 5 | 1991–1998 |