Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4741608 | Turning mirror for integrating image and light indicator ray bundles | William A. Kastendieck, Paul B. Mattes | 1988-05-03 |
| 4698857 | Light secure eyecup for use with night vision goggles | William A. Kastendieck | 1987-10-13 |