Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4525709 | Electrically controlled display device | Michel Hareng, Michel DeFrance | 1985-06-25 |
| 4525708 | Thermoelectric effect display device | Michel Hareng, Robert Hehlen, Philippe Marcenac, Serge Le Berre, Pierre Leclerc | 1985-06-25 |
| 4430650 | Display process using a thermo-optical effect with a memory in a thin disc-like liquid crystal layer and disc-like liquid crystals having such an effect | Jean Billard, Jean-Claude Dubois, Michel Hareng, Serge Le Berre | 1984-02-07 |
| 4427997 | Control device for a display screen and display screen controlled by this device | Michel Hareng, Robert Hehlen, Serge Le Berre, Pierre Leclerc, Philippe Marcenac | 1984-01-24 |
| 4390244 | Liquid crystal visual display unit and telephone terminal incorporating such a unit | Michel Hareng, Serge Le Berre, Pierre Leclerc | 1983-06-28 |
| 4385807 | Visual display device with memory and telephone exchange incorporating such a device | Michel Hareng, Serge Le Berre | 1983-05-31 |