Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4761056 | Compact helmet mounted display | Charles D. Evans, Andrew T. Tirums, James E. Melzer | 1988-08-02 |
| 4755023 | Headgear mounted display visor | Charles D. Evans, Andrew T. Tirums | 1988-07-05 |