Blackmer; David E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Blackmer; David E..The latest application filed is for "microphone apparatus".
- Blackmer; David E. - Wilton NH
- Blackmer; David E. - Harvard MA
- Blackmer; David E. - Brookline MA
- Blackmer; David E. - Weston MA
| Patent | Date |
|---|---|
| Microphone apparatus Grant 6,091,829 - Blackmer , et al. July 18, 2 | 2000-07-18 |
| Stereo generator Grant 4,706,287 - Blackmer , et al. November 10, 1 | 1987-11-10 |
| Sound encoding system Grant 4,680,796 - Blackmer , et al. July 14, 1 | 1987-07-14 |
| Signal decoding system Grant 4,589,129 - Blackmer , et al. May 13, 1 | 1986-05-13 |
| Bias generator Grant 4,473,793 - Blackmer , et al. September 25, 1 | 1984-09-25 |
| Differential amplifier stage having bias compensating means Grant 4,425,551 - Blackmer , et al. January 10, 1 | 1984-01-10 |
| Audio signal processing system Grant 4,404,427 - Blackmer September 13, 1 | 1983-09-13 |
| Compander system Grant 4,377,792 - Blackmer , et al. March 22, 1 | 1983-03-22 |
| Signal expander Grant 4,220,929 - Talbot , et al. September 2, 1 | 1980-09-02 |
| Detection and monitoring device Grant 4,182,930 - Blackmer January 8, 1 | 1980-01-08 |
| Adaptive signal weighting system Grant 4,136,314 - Blackmer , et al. January 23, 1 | 1979-01-23 |
| Signal compander system Grant 4,112,254 - Blackmer September 5, 1 | 1978-09-05 |
| Adaptive filter Grant 4,101,849 - Blackmer , et al. July 18, 1 | 1978-07-18 |
| Operational rectifier Grant 4,097,767 - Blackmer , et al. June 27, 1 | 1978-06-27 |
| Compander With Control Signal Logarithmically Related To The Instantaneous Rms Value Of The Input Signal Grant 3,789,143 - Blackmer January 29, 1 | 1974-01-29 |
| Apparatus For Processing Chemical Materials Held In Container Structures Grant 3,775,595 - Rosse , et al. November 27, 1 | 1973-11-27 |
| Calorimetry Grant 3,765,237 - Blackmer , et al. October 16, 1 | 1973-10-16 |
| Multiplier Circuits Grant 3,714,462 - Blackmer January 30, 1 | 1973-01-30 |
| Analysis System Employing A Plural Chamber Cuvette Structure Grant 3,703,336 - Rosse , et al. November 21, 1 | 1972-11-21 |
| Sensor Instrumentation Grant 3,694,734 - Blackmer September 26, 1 | 1972-09-26 |
| Rms Circuits With Bipolar Logarithmic Converter Grant 3,681,618 - Blackmer August 1, 1 | 1972-08-01 |
| Fault Sensing Instrumentation Grant 3,661,748 - Blackmer May 9, 1 | 1972-05-09 |
| Fluid Analyzing Apparatus Grant 3,658,478 - Spergel , et al. April 25, 1 | 1972-04-25 |
| Atomic Absorption Spectroanalysis System Grant 3,586,441 - Smith , et al. June 22, 1 | 1971-06-22 |
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