Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4213584 | Helicopter hover stability and cruise gust effect alleviation | Franklin A. Tefft, Ricardo L. Perez | 1980-07-22 |
| 4206891 | Helicopter pedal feel force proportional to side slip | Ricardo L. Perez, Franklin A. Tefft | 1980-06-10 |