Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11708972 | Gas/air mixing device of a gas burner | Li Hong Rao, Guan Jun Liu | 2023-07-25 |
| 10422531 | System and approach for controlling a combustion chamber | Willem Super, Frank van Prooijen, David Kucera, Jos Praat | 2019-09-24 |
| 8636503 | Pilot burner | Donald J. Kasprzyk | 2014-01-28 |
| 8165726 | Water heater energy savings algorithm for reducing cold water complaints | Timothy J. Nordberg, Donald J. Kasprzyk | 2012-04-24 |
| 7712677 | Water heater and control | Brent Chian, Timothy J. Nordberg | 2010-05-11 |
| 7523762 | Modulating gas valves and systems | James G. Buezis, Glenn R. Bergum, Adam Z. Eskridge, Don Kasprzyk | 2009-04-28 |
| 7435081 | Method and system for pilot light safety | — | 2008-10-14 |
| 7314370 | Automated operation check for standing valve | Brent Chian, Donald J. Kasprzyk, Timothy J. Nordberg, Willem Vander Werf, Robert L. Zak +1 more | 2008-01-01 |
| 7252502 | Method and system for combined standing pilot safety and temperature setting | — | 2007-08-07 |
| 7241135 | Feedback control for modulating gas burner | Rolf L. Strand | 2007-07-10 |
| 7222639 | Electrostatically actuated gas valve | Ulrich Bonne, Cleopatra Cabuz, Eugen Cabuz, Stephen J. Kemp, John T. Adams +2 more | 2007-05-29 |
| 7076373 | Leak detection system for a water heater | Chian Brent | 2006-07-11 |
| 6955301 | Water heater and control | Brent Chian | 2005-10-18 |
| 6923204 | Diaphragm-operated fluid flow control valve providing a plurality of flow levels | James M. Dalton, Donald J. Kasprzyk, Patrick W. Schottler | 2005-08-02 |
| 6877462 | Sensorless flammable vapor protection and method | John T. Adams | 2005-04-12 |
| 6701874 | Method and apparatus for thermal powered control | Michael W. Schultz, Brent Chian | 2004-03-09 |