Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844587 | Active matrix display screen using hydrogenated amorphous silicon carbide and process for producing this screen | Michel Le Contellec, Joseph Richard | 1989-07-04 |
| 4836650 | Process for the production of a diode array and liquid crystal display screen | Michel Le Contellec | 1989-06-06 |