Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653574 | Air to air heat exchanger | James A. Fernholz | 1987-03-31 |
| 4281789 | Climate control for an animal barn | — | 1981-08-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653574 | Air to air heat exchanger | James A. Fernholz | 1987-03-31 |
| 4281789 | Climate control for an animal barn | — | 1981-08-04 |