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Patent applications and USPTO patent grants for Rydel; Charles.The latest application filed is for "low consumption multi-stage amplifier, and a vehicle onboard signal receiver having such an amplifier".
Patent | Date |
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Low consumption multi-stage amplifier, and a vehicle onboard signal receiver having such an amplifier Grant 5,530,405 - Rydel June 25, 1 | 1996-06-25 |
Lighting and/or indicating apparatus for use in foggy conditions Grant 5,349,267 - Brassier , et al. September 20, 1 | 1994-09-20 |
Circuit for "waking up" a microprocessor power supply, in particular for an ID card in a car remote control system Grant 5,305,459 - Rydel April 19, 1 | 1994-04-19 |
Remote control system for locking/unlocking the doors of motor vehicles with aspherical toroidal lens containing multiple photodetectors Grant 5,191,324 - Rydel March 2, 1 | 1993-03-02 |
Key making use of the properties of a liquid crystal Grant 5,043,710 - Rydel August 27, 1 | 1991-08-27 |
Method and device to measure the optical transmission factor of a tinted glass panel by reflection Grant 4,925,310 - Feppon , et al. May 15, 1 | 1990-05-15 |
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