Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8837763 | Inertially balanced miniature low frequency speaker system | Samuel L. Millen | 2014-09-16 |
| 7038356 | Mechanical-to-acoustical transformer and multi-media flat film speaker | — | 2006-05-02 |
| 6720708 | Mechanical-to-acoustical transformer and multi-media flat film speaker | — | 2004-04-13 |
| 6449376 | Planar-type loudspeaker with at least two diaphragms | Carlos Beltran, David Cahill, Wako Iwasaki, Andrew Kotsatos | 2002-09-10 |
| 5335287 | Loudspeaker utilizing magnetic liquid suspension of the voice coil | — | 1994-08-02 |
| 5283835 | Ferroelectric composite film acoustic transducer | — | 1994-02-01 |