Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6102544 | Multifocal ophthalmic lens | Thierry Baudart, Francoise Ahsbahs | 2000-08-15 |
| 5812238 | Progressive multifocal ophthalmic lens pair | Francoise Ahsbahs, Bernard Bourdoncle, Benedicte Deldalle | 1998-09-22 |
| 5488442 | Progressive multifocal ophthalmic lens | Christian Harsigny, Jean-Pierre Chauveau, Francoise Ahsbahs | 1996-01-30 |
| 4976534 | Simultaneous vision optical lens for correcting presbyopia | Pierre Monteil, Gerard Obrecht | 1990-12-11 |