Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6934633 | Helmet-mounted parachutist navigation system | Kirk Vanzandt, William W. Hughes III, Charles Holmes | 2005-08-23 |
| 6931339 | Compass and communication system | William D. Olstad | 2005-08-16 |
| 6868360 | Small head-mounted compass system with optical display | William D. Olstad | 2005-03-15 |
| 6837240 | Display system upgrade for a full face mask | William D. Olstad | 2005-01-04 |