Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8636503 | Pilot burner | Sybrandus Munsterhuis | 2014-01-28 |
| 8512034 | Gas pilot burner assembly | Gregory Young | 2013-08-20 |
| 8235064 | Single coil redundant valve | James E. Erickson | 2012-08-07 |
| 8165726 | Water heater energy savings algorithm for reducing cold water complaints | Timothy J. Nordberg, Sybrandus Munsterhuis | 2012-04-24 |
| 7789657 | Pressure regulator with bleed orifice | James G. Buezis | 2010-09-07 |
| 7314370 | Automated operation check for standing valve | Brent Chian, Sybrandus Munsterhuis, Timothy J. Nordberg, Willem Vander Werf, Robert L. Zak +1 more | 2008-01-01 |
| 6923204 | Diaphragm-operated fluid flow control valve providing a plurality of flow levels | James M. Dalton, Sybrandus Munsterhuis, Patrick W. Schottler | 2005-08-02 |
| 5176037 | Linear actuator with controllable output force | — | 1993-01-05 |
| 4897051 | Flexible electric component leads | — | 1990-01-30 |
| 4690324 | Oil burner control for hydronic system | — | 1987-09-01 |
| 4394708 | Electronic thermostat with protected circuitry | — | 1983-07-19 |
| 4390859 | Electric thermostat with adjusting knob | David A. Margenau, Marvin D. Nelson | 1983-06-28 |