Frerking; Marvin E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Frerking; Marvin E..The latest application filed is for "integrator controlled time compensated clock oscillator".
- Frerking; Marvin E. - Cedar Rapids IA
| Patent | Date |
|---|---|
| Integrator controlled time compensated clock oscillator Grant 4,906,944 - Frerking March 6, 1 | 1990-03-06 |
| Vibration compensated crystal oscillator Grant 4,891,611 - Frerking January 2, 1 | 1990-01-02 |
| Closed loop temperature compensated frequency reference Grant 4,513,259 - Frerking April 23, 1 | 1985-04-23 |
| Variable gain oven temperature control circuit Grant 4,449,032 - Frerking May 15, 1 | 1984-05-15 |
| Accelerated warm-up crystal oven Grant 4,396,892 - Frerking , et al. August 2, 1 | 1983-08-02 |
| Time compensated clock oscillator Grant 4,305,041 - Frerking December 8, 1 | 1981-12-08 |
| Closed loop temperature compensated frequency reference Grant 4,297,657 - Frerking October 27, 1 | 1981-10-27 |
| Non-linear digital-to analog conversion Grant 4,126,853 - Frerking November 21, 1 | 1978-11-21 |
| Radio receiver noise suppression Grant 3,978,412 - Frerking August 31, 1 | 1976-08-31 |
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