Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4907860 | Three dimensional viewing glasses | — | 1990-03-13 |
| 4736258 | High density storage of information on a compact disc | Edmund Sandberg, Norman L. Noble | 1988-04-05 |
| 4671625 | Optical apparatus for producing a natural, viewable and optically interactive image in free space | — | 1987-06-09 |
| 4339300 | Process for smoothing surfaces of crystalline materials | — | 1982-07-13 |