Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10701487 | Crossover for multi-driver loudspeakers | — | 2020-06-30 |
| 9485043 | Quadrature modulation apparatus for AM stereo transmitters | — | 2016-11-01 |
| 7085389 | Infinite slope loudspeaker crossover filter | — | 2006-08-01 |
| 4918394 | Audio frequency power amplifier with improved circuit topology | — | 1990-04-17 |
| 4771466 | Multidriver loudspeaker apparatus with improved crossover filter circuits | — | 1988-09-13 |
| 4403112 | Phase shift low frequency loudspeaker system | — | 1983-09-06 |