Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801110 | Approach to hover control system for helicopters | — | 1989-01-31 |
| 4628455 | Cross axis torque limiter for helicopter autopilot | — | 1986-12-09 |
| 4603388 | VTOL altitude hold system with automatic ground effect compensation | Carl D. Griffith | 1986-07-29 |
| 4603389 | Three cue flight director system for helicopters | Carl D. Griffith | 1986-07-29 |
| 4490794 | Altitude preselect system for aircraft without air data computer | Carl D. Griffith, Paul A. Rauschelbach, Robert Wilson Robinson | 1984-12-25 |
| 4481586 | Adaptive washout circuit for use in a stability augmentation system | — | 1984-11-06 |
| 4460964 | Multiaxis hardover protection apparatus for automatic flight control systems | Carl D. Griffith, Robert A. Bowie | 1984-07-17 |
| 4312039 | Transient free synchronization system | — | 1982-01-19 |
| 4227664 | Stall current limiter for servo drive systems | — | 1980-10-14 |