Issued Patents All Time
Showing 76–77 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7527375 | Electronic adapter for electro-active spectacle lenses | Ronald D. Blum, Dwight P. Duston | 2009-05-05 |
| 7520608 | Color balanced ophthalmic system with selective light inhibition | Andrew W. Ishak, William Kokonaski, Dwight P. Duston, Venkatramani S. Iyer, Ronald D. Blum | 2009-04-21 |