Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4569074 | Method and apparatus for reproducing sound having a realistic ambient field and acoustic image | — | 1986-02-04 |
| 4497064 | Method and apparatus for reproducing sound having an expanded acoustic image | — | 1985-01-29 |
| 4489432 | Method and apparatus for reproducing sound having a realistic ambient field and acoustic image | — | 1984-12-18 |
| 4413162 | Moving coil transducers using multiple-stranded coils | Stuart W. Lumsden | 1983-11-01 |
| 4350847 | Subwoofer system using a passive radiator | — | 1982-09-21 |