Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4275558 | Gas turbine engine fuel governor | Robert A. Hatch, Harvey B. Jansen, Robert B. Sumegi | 1981-06-30 |
| 4274253 | Control for turbine and recuperator inlet temperatures | Geoffrey D. Woodhouse, George B. Mattson, Bruce Anson, Robert A. Hatch | 1981-06-23 |
| 4266401 | Gas turbine engine fuel control | Robert B. Sumegi, Geoffrey D. Woodhouse, George B. Mattson, Harvey B. Jansen, Robert A. Hatch | 1981-05-12 |