Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11719436 | Method and system for controlling an ignition sequence for an intermittent flame-powered pilot combustion system | Brent Chian, Bruce L. Hill, Timothy J. Nordberg, Rolf L. Strand, Peter Anderson | 2023-08-08 |
| 11268695 | Method and system for starting an intermittent flame-powered pilot combustion system | Brent Chian, Peter Anderson, Timothy J. Nordberg, Thomas Johnson, Rolf L. Strand | 2022-03-08 |
| 10429068 | Method and system for starting an intermittent flame-powered pilot combustion system | Brent Chian, Peter Anderson, Timothy J. Nordberg, Thomas Johnson, Rolf L. Strand | 2019-10-01 |
| 10337747 | Selectable efficiency versus comfort for modulating furnace | Timothy J. Nordberg, Brent Chian, Michael W. Schultz, Peter Anderson | 2019-07-02 |
| 10208954 | Method and system for controlling an ignition sequence for an intermittent flame-powered pilot combustion system | Brent Chian, Bruce L. Hill, Timothy J. Nordberg, Rolf L. Strand, Peter Anderson | 2019-02-19 |
| 9494320 | Method and system for starting an intermittent flame-powered pilot combustion system | Brent Chian, Peter Anderson, Timothy J. Nordberg, Thomas Johnson, Rolf L. Strand | 2016-11-15 |
| 9316413 | Selectable efficiency versus comfort for modulating furnace | Timothy J. Nordberg, Brent Chian, Michael W. Schultz, Peter Anderson | 2016-04-19 |
| 8764435 | Burner firing rate determination for modulating furnace | Timothy J. Nordberg, Brent Chian, Michael W. Schultz | 2014-07-01 |
| 8245987 | Mounting bracket for use with a water heater | Fritz Hazzard, James E. Eickson, Bruce L. Hill | 2012-08-21 |
| 8123518 | Burner firing rate determination for modulating furnace | Timothy J. Nordberg, Brent Chiain, Michael W. Schultz | 2012-02-28 |
| 7804047 | Temperature sensor diagnostic for determining water heater health status | Robert L. Zak, Brent Chian | 2010-09-28 |
| 7741941 | Dual armature solenoid valve assembly | James G. Buezis, Glenn R. Bergum, Timothy J. Smith | 2010-06-22 |
| 7485153 | Fluid free interface for a fluidic analyzer | Aravind Padmanabhan, Tom Rezachek, Ron L. Bardell, Bernard S. Fritz | 2009-02-03 |
| 7170762 | Low voltage DC-DC converter | Brent Chian, Jonathan McDonald | 2007-01-30 |
| 6959876 | Method and apparatus for safety switch | Brent Chian | 2005-11-01 |
| 6881055 | Temperature controlled burner apparatus | — | 2005-04-19 |
| 6428308 | Electronic fuel convertibility selection | Stephen J. Kemp | 2002-08-06 |
| 6346789 | Motor step-less speed control with active feedback of phase detector | Brent Chian | 2002-02-12 |
| 6280179 | Over temperature limiting scheme by reducing gas pressure | — | 2001-08-28 |
| 6261087 | Pilot flame powered burner controller with remote control operation | John E. Bohan, Jr., Patrick Gonia | 2001-07-17 |
| 5757195 | Humidity sensing circuit | — | 1998-05-26 |
| 5744973 | Resistance to frequency circuit for measuring ambient temperature on a thermostat | — | 1998-04-28 |
| 5361983 | Method of maximizing the efficiency of an environmental control system including a programmable thermostat | — | 1994-11-08 |
| 5025984 | Setback thermostat with recovery start time selected non-linearly | Daniel T. Uhrich | 1991-06-25 |
| 4991770 | Thermostat with means for disabling PID control | Daniel T. Uhrich | 1991-02-12 |