Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7356385 | End-user electrical load controller | Marc Delisle, Tom Gough | 2008-04-08 |
| 5669224 | Direct expansion ground source heat pump | — | 1997-09-23 |
| 5136855 | Heat pump having an accumulator with refrigerant level sensor | — | 1992-08-11 |