Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5288669 | Glasses with very high index of refraction and low density | Luc Grateau, Michel Prassas | 1994-02-22 |
| 5281303 | Process for manufacturing integrated optical components using silicon mask | Alain Beguin, Jean-Claude Presotto | 1994-01-25 |