Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4483592 | Liquid crystal optical valve controlled by photoconducting effect | Jean-Pierre Huignard, Michel Hareng | 1984-11-20 |
| 4353616 | Optical device for printing planar objects | Pierre Leclerc, Jean-Pierre Huignard | 1982-10-12 |