Wallace, Jr.; Robert L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wallace, Jr.; Robert L..The latest application filed is for "wall-mounted microphone".
- Wallace, Jr.; Robert L. - Warren NJ
- Wallace, Jr.; Robert L. - Warren Township Somerset County
| Patent | Date |
|---|---|
| Wall-mounted microphone Grant D295,169 - Cho , et al. April 12, 1 | 1988-04-12 |
| Electret transducer with variably charged electret foil Grant 4,429,191 - Busch-Vishniac , et al. January 31, 1 | 1984-01-31 |
| Electret transducer with variable effective air gap Grant 4,429,193 - Busch-Vishniac , et al. January 31, 1 | 1984-01-31 |
| End-fire microphone and loudspeaker structures Grant 4,421,957 - Wallace, Jr. December 20, 1 | 1983-12-20 |
| Teleconference microphone arrays Grant 4,311,874 - Wallace, Jr. January 19, 1 | 1982-01-19 |
| Ambient Noise Suppressor Grant 3,644,674 - Mitchell , et al. February 22, 1 | 1972-02-22 |
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