Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5031102 | Method and apparatus for aircraft pitch and thrust axes control | Robert D. Simpson | 1991-07-09 |
| 4471439 | Method and apparatus for aircraft pitch and thrust axes control | Robert D. Simpson | 1984-09-11 |
| 4357663 | Method and apparatus for aircraft pitch and thrust axes control | Robert D. Simpson | 1982-11-02 |