Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4709560 | Control module cooling | Daryl G. Erbs, John M. Palmer, Derrick A. Marris | 1987-12-01 |
| 4394816 | Heat pump system | — | 1983-07-26 |
| 4362030 | Refrigeration circuit | — | 1982-12-07 |