Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5303142 | Control system for gas turbine helicopter engines and the like | Douglas A. Parsons, Mark A. Johnston, John E. Games | 1994-04-12 |
| 5189620 | Control system for gas turbine helicopter engines and the like | Douglas A. Parsons, Mark A. Johnston, John E. Games | 1993-02-23 |