Perino; Didier
Patent Applications and Registrations
Patent applications and USPTO patent grants for Perino; Didier.The latest application filed is for "devices for manufacturing electrets, and electrets obtained thereby".
- Perino; Didier - 92500 Rueil-Malmaison FR
- Perino; Didier - 92150 Suresnes FR
- Perino; Didier - Suresnes FR
| Patent | Date |
|---|---|
| Devices for manufacturing electrets, and electrets obtained thereby Grant 5,565,717 - Lewiner , et al. October 15, 1 | 1996-10-15 |
| SiO.sub.2 electrets and process of making it Grant 5,486,423 - Lewiner , et al. January 23, 1 | 1996-01-23 |
| Devices adapted to detect variations in magnetic flux notably circuit breakers Grant 4,285,022 - Lewiner , et al. August 18, 1 | 1981-08-18 |
| Detectors of parameters adapted to act on the force of attraction between an electret and an electrode Grant 4,227,086 - Dreyfus , et al. October 7, 1 | 1980-10-07 |
| Control devices of the relay type Grant 4,194,189 - Lewiner , et al. March 18, 1 | 1980-03-18 |
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