Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7798107 | Temperature control system for a water heater | Timothy J. Nordberg | 2010-09-21 |
| 7768410 | Leakage detection and compensation system | — | 2010-08-03 |
| 7764182 | Flame sensing system | Peter Anderson, Timothy J. Nordberg, Bruce L. Hill | 2010-07-27 |
| 7747358 | Building equipment component control with automatic feature detection | Henry E. Troost, Timothy J. Nordberg, Scott Bracken | 2010-06-29 |
| 7728736 | Combustion instability detection | Shanna Lorraine Leeland | 2010-06-01 |
| 7721972 | Appliance control with automatic damper detection | Scott Bracken, Timothy J. Nordberg, Henry E. Troost | 2010-05-25 |
| 7712677 | Water heater and control | Sybrandus Munsterhuis, Timothy J. Nordberg | 2010-05-11 |
| 7317265 | Method and apparatus for power management | Timothy J. Nordberg, Jonathan McDonald | 2008-01-08 |
| 7314370 | Automated operation check for standing valve | Donald J. Kasprzyk, Sybrandus Munsterhuis, Timothy J. Nordberg, Willem Vander Werf, Robert L. Zak +1 more | 2008-01-01 |
| 7170762 | Low voltage DC-DC converter | Douglas D. Bird, Jonathan McDonald | 2007-01-30 |
| 7167813 | Water heater performance monitoring system | Bruce L. Hill, Timothy J. Nordberg | 2007-01-23 |
| 7073524 | Fail safe drive for control of multiple solenoid coils | — | 2006-07-11 |
| 6959876 | Method and apparatus for safety switch | Douglas D. Bird | 2005-11-01 |
| 6955301 | Water heater and control | Sybrandus Munsterhuis | 2005-10-18 |
| 6920377 | Self-sustaining control for a heating system | — | 2005-07-19 |
| 6862165 | Method and apparatus for valve control | Timothy J. Nordberg | 2005-03-01 |
| 6701874 | Method and apparatus for thermal powered control | Michael W. Schultz, Sybrandus Munsterhuis | 2004-03-09 |
| 6667594 | Determination of maximum travel of linear actuator | — | 2003-12-23 |
| 6478573 | Electronic detecting of flame loss by sensing power output from thermopile | — | 2002-11-12 |
| 6346789 | Motor step-less speed control with active feedback of phase detector | Douglas D. Bird | 2002-02-12 |