Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6170440 | Gas fired booster | Carla A. Monnier, Thomas A. Grueser, Gary V. Hoying, Doug Noren | 2001-01-09 |
| 5794634 | Warewasher tank heating system and controls therefor | Doug Noren | 1998-08-18 |
| 5642742 | Warewasher tank heating system and controls therefor | Doug Noren | 1997-07-01 |
| 5511570 | Warewasher employing infrared burner | Doug Noren | 1996-04-30 |