Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4759401 | Three fluid heat exchanger for cooling oil and air with fuel | Robert R. Pfouts, John E. Wunder | 1988-07-26 |
| 4620588 | Three fluid heat exchanger with pressure responsive control | Robert R. Pfouts, John E. Wunder | 1986-11-04 |