Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7735997 | Rigid contact lens | — | 2010-06-15 |
| 6390622 | Contact lens or intraocular lens having near and distance zones | Stefan Muckenhirn, Frank Widmer | 2002-05-21 |
| 5430504 | Bifocal contact lenses | Charles Debon | 1995-07-04 |
| 4883350 | Contact lens providing a central spherical region bounded by a circumscribing aspherical region | — | 1989-11-28 |