Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229874 | Device for the display of color images | Jean-Claude Lehureau | 1993-07-20 |
| 5168485 | Device for optically reading optical recording medium | Jean-Claude Lehureau, Henriette Magna | 1992-12-01 |
| 5134516 | Device for the projection of images | Jean-Claude Lehureau | 1992-07-28 |
| 5113134 | Integrated test circuit for display devices such as LCD's | Dora Plus | 1992-05-12 |
| 5055833 | Method for the control of an electro-optical matrix screen and control circuit | Robert Hehlen, by Philippe Hehlen, legal representative, by Bernard Hehlen, legal representative, Maurice Le Galguen | 1991-10-08 |
| 4944575 | Electrooptical display screen and a method of fabrication of said screen | Pierre Aigrain, Jean-Claude Dubois, Michel Hareng, Philippe Robin | 1990-07-31 |
| 4824216 | Device for the modulation of the illuminating light of an electro-optic display screen | Jean-Noel Perbet, Michel Hareng | 1989-04-25 |
| 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, Jean-Pierre Herriau, Jean-Noel Perbet | 1989-04-04 |
| 4789228 | Electrically controlled optical switching device | Jean-Pierre Le Pesant, Michel Hareng | 1988-12-06 |
| 4732873 | Method of fabrication of non-linear control elements for a flat electrooptical display screen | Jean-Noel Perbet, Michel Graciet, Michel DeFrance, Patrick Truffer, Nicolas Szylo | 1988-03-22 |
| 4701021 | Optical modulator | Jean-Pierre Le Pesant, Michel Hareng, Jean-Noel Perbet | 1987-10-20 |
| 4697331 | Method of fabrication of a control transistor for a flat-panel display screen | Francois Boulitrop, Eric Chartier, Serge Le Berre | 1987-10-06 |
| 4673256 | Process for controlling a matrix access display device | Robert Hehlen, Michel Hareng, Serge Le Berre | 1987-06-16 |
| 4668051 | Memory ferroelectric display addressed with AC and DC voltages | Michel Hareng, Jean-Pierre Le Pesant, Jean-Noel Perbet | 1987-05-26 |
| 4598978 | Screen of a display device using a mixed thermal and electrical effect | Michel Hareng, Lydie Thirant | 1986-07-08 |
| 4593978 | Smectic liquid crystal color display screen | Michel Hareng | 1986-06-10 |
| 4569575 | Electrodes for a device operating by electrically controlled fluid displacement | Jean-Pierre Le Pesant, Michel Hareng, Jean-Noel Perbet | 1986-02-11 |