Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702819 | Composite lenses | Ronald D. Blum, Venkatramani S. Iyer, Paul J. Nagg | 1997-12-30 |
| 5683457 | Prismatic intraocular lenses and related method of using such lenses to restore vision in patients with central field loss | Richard J. Mackool | 1997-11-04 |
| 5598234 | Method of manufacturing toric single vision, spherical or aspheric bifocal, multifocal or progressive contact lenses | Ronald D. Blum | 1997-01-28 |