Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7536019 | Audio system for use with a vehicle | David J. Prince, Robert True | 2009-05-19 |
| 7218745 | Headliner transducer covers | John E. McConnell | 2007-05-15 |
| 7077236 | Articulating vehicle speaker assembly | Pawel W. Sleboda, Richard D. George | 2006-07-18 |
| 6899381 | Vehicle headliner with a flexible duct | Mark Fero, David J. Prince, Randall Gage | 2005-05-31 |