Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7021142 | Mountable sound pressure level meter | — | 2006-04-04 |
| 6938726 | Field rebuildable low frequency loudspeaker driver having a removable diaphragm assembly, parts kit and method for rebuilding a loudspeaker driver in the field | Daniel Frank Roemer | 2005-09-06 |
| 6567529 | Low frequency loudspeaker driver having a polygonal diaphragm and method for mounting drivers in a tightly packed two-dimensional array | — | 2003-05-20 |
| 6154555 | Recessed audio speaker system | — | 2000-11-28 |