Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10495790 | Head-mounted display apparatus employing one or more Fresnel lenses | David A. Smith, Gary E. Weise, Gregory A. Harrison | 2019-12-03 |
| 9632315 | Head-mounted display apparatus employing one or more fresnel lenses | David A. Smith, Gary E. Wiese, Gregory A. Harrison | 2017-04-25 |