Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4924144 | Matrix screen, its production process and matrix display means with several tones, controlled on an all or nothing basis and incorporating said screen | Roger Menn, Christian Brunel | 1990-05-08 |
| 4874986 | Trichromatic electroluminescent matrix screen, and method of manufacture | Roger Menn, Christian Brunel | 1989-10-17 |
| 4829213 | Flat electroluminescent screen | Roger Menn, Christian Brunel | 1989-05-09 |