Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877312 | Bistable optical photorefractive crystal device | Jean-Pierre Huignard | 1989-10-31 |
| 4818052 | Device for optical switching by fluid displacement and a device for the composition of a line of points | Jean-Pierre Le Pesant, Michel Hareng, Jean-Pierre Huignard, Bruno Mourey, Jean-Noel Perbet | 1989-04-04 |