Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11624528 | Field configuration of commercial water heaters | John Matthew Schulz, Carl Edward McDow, Steven J. Wilcox | 2023-04-11 |
| 11371753 | Field configuration of commercial water heaters | John Matthew Schulz, Carl Edward McDow, Steven J. Wilcox | 2022-06-28 |
| 11280557 | Stratifier for tank-type water heater | Yingwu Teng | 2022-03-22 |
| 10753644 | Water heater | Zhongsheng Niu, Meng Yang | 2020-08-25 |
| 10612817 | System and method of controlling a water heater having a powered anode | Ray O. Knoeppel, Timothy Edward Rooney, Thomas G. Van Sistine | 2020-04-07 |
| 10337747 | Selectable efficiency versus comfort for modulating furnace | Timothy J. Nordberg, Brent Chian, Douglas D. Bird, Peter Anderson | 2019-07-02 |
| 10330344 | Temperature algorithm for water heater | Yingwu Teng, Carl Edward McDow | 2019-06-25 |
| 9605871 | Furnace burner radiation shield | James Holmberg, Douglas M. Perry, Tim Smith, Curtis L. Taylor | 2017-03-28 |
| 9453648 | Furnace with modulating firing rate adaptation | Jonathan McDonald, Victor J. Cueva | 2016-09-27 |
| 9316413 | Selectable efficiency versus comfort for modulating furnace | Timothy J. Nordberg, Brent Chian, Douglas D. Bird, Peter Anderson | 2016-04-19 |
| 9032950 | Gas pressure control for warm air furnaces | — | 2015-05-19 |
| 8919337 | Furnace premix burner | Douglas M. Perry, James E. Erickson | 2014-12-30 |
| 8876524 | Furnace with modulating firing rate adaptation | Jonathan McDonald, Victor J. Cueva | 2014-11-04 |
| 8764435 | Burner firing rate determination for modulating furnace | Timothy J. Nordberg, Brent Chian, Douglas D. Bird | 2014-07-01 |
| 8635997 | Systems and methods for controlling gas pressure to gas-fired appliances | Glenn R. Bergum | 2014-01-28 |
| 8591221 | Combustion blower control for modulating furnace | — | 2013-11-26 |
| 8123518 | Burner firing rate determination for modulating furnace | Timothy J. Nordberg, Brent Chiain, Douglas D. Bird | 2012-02-28 |
| 7981164 | Knee prosthesis | — | 2011-07-19 |
| 7748375 | Negative pressure conditioning device with low pressure cut-off | — | 2010-07-06 |
| 7644712 | Negative pressure conditioning device and forced air furnace employing same | — | 2010-01-12 |
| 7123020 | System and method of fault detection in a warm air furnace | Bruce L. Hill, Rolf L. Strand | 2006-10-17 |
| 6923643 | Premix burner for warm air furnace | Rolf L. Strand | 2005-08-02 |
| 6880548 | Warm air furnace with premix burner | Rolf L. Strand | 2005-04-19 |
| 6701874 | Method and apparatus for thermal powered control | Brent Chian, Sybrandus Munsterhuis | 2004-03-09 |
| 5329835 | Adjustable length punch set assembly | Richard L. Timp, John H. Morehead | 1994-07-19 |