Spires; Dewayne A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Spires; Dewayne A..The latest application filed is for "frequency-dependent impedance synthesis for dsl interface circuits".
- Spires; Dewayne A. - Plaistow NH
| Patent | Date |
|---|---|
| Frequency-dependent impedance synthesis for DSL interface circuits Grant 6,842,518 - Chen , et al. January 11, 2 | 2005-01-11 |
| Frequency-dependent impedance synthesis for DSL interface circuits App 20030112962 - Chen, Robert K. ; et al. | 2003-06-19 |
| Relay driver Grant 4,510,550 - Spires April 9, 1 | 1985-04-09 |
| Line circuit with flux compensation and active impedance termination Grant 4,503,289 - Spires March 5, 1 | 1985-03-05 |
| Battery feed circuit Grant 4,476,350 - Aull , et al. October 9, 1 | 1984-10-09 |
| Operational amplifier with improved output capability Grant 4,454,479 - Spires June 12, 1 | 1984-06-12 |
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