Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4500967 | Aircraft short-term roll attitude retention system | Richard D. Murphy, Douglas H. Clelford | 1985-02-19 |
| 4213584 | Helicopter hover stability and cruise gust effect alleviation | Franklin A. Tefft, Ronald E. Barnum | 1980-07-22 |
| 4206891 | Helicopter pedal feel force proportional to side slip | Ronald E. Barnum, Franklin A. Tefft | 1980-06-10 |