Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6694926 | Water heater with continuously variable air and fuel input | David Clark Baese, Barry Anthony Collins, Mohsen Sarfehjoo | 2004-02-24 |
| 6619951 | Burner | David Clark Baese, Mohsen Sarfehjoo | 2003-09-16 |
| 6428312 | Resonance free burner | Jimmy Charles Smelcer | 2002-08-06 |
| 6202935 | Combined potable water heater and hydronic heating system | Marc W. Akkala, Jill M. Szczech, Frank A. Mueller, Dennis R. Hughes, Kevin Field +1 more | 2001-03-20 |
| 4755918 | Reflector system | David J. Pristash | 1988-07-05 |