Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6721434 | Loudspeaker mounting system | Matthew Polk, James M. Herd | 2004-04-13 |
| D463407 | Speaker | Keith A. Ballard, Marco Cattaneo, John D. Crisco, Dave A. Fitzpatrick | 2002-09-24 |
| D448360 | Portion of a speaker | Keith A. Ballard, Marco Cattaneo, John D. Crisco, Dave A. Fitzpatrick | 2001-09-25 |
| D440559 | Portion of a speaker | Keith A. Ballard, Marco Cattaneo, John D. Crisco, Dave A. Fitzpatrick, Niklas Jacob | 2001-04-17 |