Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5565717 | Devices for manufacturing electrets, and electrets obtained thereby | Jacques Lewiner | 1996-10-15 |
| 5486423 | SiO.sub.2 electrets and process of making it | Jacques Lewiner | 1996-01-23 |
| 4546257 | Devices for measuring ionizing radiations | Jacques Lewiner, Claude Hennion | 1985-10-08 |
| 4441134 | Circuit breakers sensitive to leakage currents | Jacques Lewiner, Claude Hennion | 1984-04-03 |
| 4401891 | Electret devices for measuring ionizing radiation | Jacques Lewiner, Gerard Dreyfus | 1983-08-30 |
| 4355235 | Devices for measuring parameters which can modify the charge of an electret | Jacques Lewiner, Gerard Dreyfus | 1982-10-19 |
| 4285022 | Devices adapted to detect variations in magnetic flux notably circuit breakers | Jacques Lewiner, Gerard Dreyfus | 1981-08-18 |
| 4263589 | Devices for detecting the rupture of an electrical circuit element | Jacques Lewiner, Gerard Dreyfus | 1981-04-21 |
| 4227086 | Detectors of parameters adapted to act on the force of attraction between an electret and an electrode | Gerard Dreyfus, Jacques Lewiner | 1980-10-07 |
| 4194189 | Control devices of the relay type | Jacques Lewiner, Gerard Dreyfus | 1980-03-18 |