Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803972 | Polarization conversion system | Derek B. Dove, Rama N. Singh | 2004-10-12 |
| 6747611 | Compact optical system and packaging for head mounted display | Derek B. Dove, Istvan Lovas, Robert S. Olyha, Jr., Carl G. Powell | 2004-06-08 |