Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7028494 | Defrosting methodology for heat pump water heating system | Nicolas Pondicq-Cassou, Jean-Philippe Goux, Yu H. Chen, Julio Concha, Tobias H. Sienel | 2006-04-18 |
| 6334321 | Method and system for defrost control on reversible heat pumps | Wahil Said, Joseph Ballet | 2002-01-01 |