Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11680736 | Heat pump system utilizing domestic water | — | 2023-06-20 |
| 11543164 | Super-hybrid heat pump system and method | Stephen A. Hamstra, Roshan Revankar | 2023-01-03 |
| 9810437 | Optimal energy saving for kitchen hood systems | Bryan D. Miller, Craig R. Davis | 2017-11-07 |
| 9285140 | Ground loop bypass for ground source heating or cooling | — | 2016-03-15 |
| 7048199 | Kitchen exhaust optimal temperature span system and method | — | 2006-05-23 |
| 6170480 | Commercial kitchen exhaust system | Darren L. Witter, Eric P. Bussy | 2001-01-09 |
| 4903685 | Variable exhaust controller for commercial kitchens | — | 1990-02-27 |
| 4822385 | Exhaust cleansing apparatus | Gary L. Strege, Gerd W. Renno, Kirk A. Nelson | 1989-04-18 |