Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5296656 | Sound collecting and concentrating device for attaching to the back of multiple loudspeakers | — | 1994-03-22 |
| D339588 | Sound concentrating and directing horn attachment for loudspeakers | — | 1993-09-21 |
| D339138 | Sound modifying attachment disk for loudspeakers | — | 1993-09-07 |
| D338467 | Sound concentrating and directing horn attachment for loudspeakers | — | 1993-08-17 |
| D338466 | Sound concentrating and directing horn attachment for loudspeakers | — | 1993-08-17 |
| 5206465 | Sound collecting and concentrating device for attaching to the back of a loudspeaker | — | 1993-04-27 |
| 5025886 | Multi-ported and multi-directional loudspeaker system | — | 1991-06-25 |