Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6136968 | Homoazaadamantane spirooxazines and their use in the field of ophthalmic optics | Karine Chamontin, Andre Samat, Robert Guglielmetti | 2000-10-24 |
| 6019914 | Photochromic spirooxazine compounds, their use in the field of ophthalmic optics | Karine Chamontin, Robert Guglielmetti, Andre Samat | 2000-02-01 |
| 5936016 | Photochromic compounds and methods for their use | Pierre Lareginie, Andre Samat, Robert Guglielmetti, Elena Zaballos Garcia | 1999-08-10 |
| 5604280 | Ring spiro [fluorene-[2H]-benzopyranes] and their use in ophthalmic optics | Jean L. Pozzo, Robert Guglielmetti, Andr e Samat, Guena elle Harie | 1997-02-18 |