France Telecom Etablissement Autonome de Droit Public (Centre National d'Etudes des Telecommunications)
16Patents
0Active
16Granted
34Portfolio score
Filing activity: Feb 12, 1991 → Jun 22, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5193002A | Apparatus for the coding/decoding of image signals | Electricity | 64 | Expired |
| US5247578A | Process for exchange of rights between microprocessor cards | Physics | 56 | Expired |
| US5238861A | Method for manufacturing an active matrix display screen with storage capacitors | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5111517A | Polarization beam splitter for guided light | Physics | 37 | Expired |
| US5228094A | Process of identifying and authenticating data characterizing an individual | Physics | 32 | Expired |
| US5212113A | Process for the selective epitaxy and etching of a III-V material in the same OMCVD growth frame | Electricity | 20 | Expired |
| US5394258A | Active matrix display screen with storage capacitors formed of conductive blocks, semiconductive material, nonconductive material, and capacitive lines | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5151957A | Polarization beam splitter for guided light | Physics | 16 | Expired |
| US5218559A | Pseudo-random generator | Electricity | 14 | Expired |
| US5262720A | Circuit for controlling the lines of a display screen and including test means with a single output | Physics | 11 | Expired |
| US5252956A | Sample and hold circuit for a liquid crystal display screen | Physics | 7 | Expired |
| US5189542A | System for the optical switching of frequency multiplexed signals | Electricity | 6 | Expired |
| US5243608A | Optical transmission process by wavelength shifting and corresponding system | Electricity | 6 | Expired |
| US5289332A | Protective circuit for a control circuit, in particular of liquid crystal display screen | Physics | 5 | Expired |
| US5140381A | Optical detection device with variable detection threshold | Electricity | 5 | Expired |
| US5397508A | 2-amino-5-nitropyridinium salts usable in non-linear optics and in electroptics and a process for preparing the same | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.