Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885909 | Method of operating a multipurpose auxiliary power unit | — | 1989-12-12 |
| 4864812 | Combined auxiliary and emergency power unit | Roy W. Vershure, Jr. | 1989-09-12 |
| 4845944 | Dual mode gas turbine power plant | — | 1989-07-11 |
| 4821506 | Radial turbine with variable axial nozzle | — | 1989-04-18 |
| 4819423 | Integrated power unit | Roy W. Vershure, Jr., Jack R. Shekleton | 1989-04-11 |
| 4815277 | Integrated power unit | Roy W. Vershure, Jr., Jack R. Shekleton | 1989-03-28 |
| 4800717 | Turbine rotor cooling | — | 1989-01-31 |