Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4408661 | Cabinet cooler heat exchanger | George Y. Eastman, Donald M. Ernst | 1983-10-11 |
| 4309986 | Solar heater | George Y. Eastman, Donald M. Ernst | 1982-01-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4408661 | Cabinet cooler heat exchanger | George Y. Eastman, Donald M. Ernst | 1983-10-11 |
| 4309986 | Solar heater | George Y. Eastman, Donald M. Ernst | 1982-01-12 |