Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7503184 | Gas engine driven heat pump system with integrated heat recovery and energy saving subsystems | Larry Copeland, Robert Scott Gaylord, Mark Haught, Isaac Mahderekal, Dudley J. Sondeno | 2009-03-17 |
| 5054542 | Heat transfer system | John L. Curtis, Dennis A. Barnett | 1991-10-08 |