Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D803188 | Audio speaker | Daniel W. Ashcraft, Mike Giffin, Britt C. Ashcraft, Deanna Griffith | 2017-11-21 |
| D637994 | Audio system | Ken S. Chae, Steven St. John Tourison | 2011-05-17 |
| D538767 | Audio system | Ken S. Chae, Peter David Gaskarth, David Fitzpatrick | 2007-03-20 |
| D463407 | Speaker | Keith A. Ballard, Marco Cattaneo, Dave A. Fitzpatrick, Robert E. Limbaugh | 2002-09-24 |
| D448360 | Portion of a speaker | Keith A. Ballard, Marco Cattaneo, Dave A. Fitzpatrick, Robert E. Limbaugh | 2001-09-25 |
| D440559 | Portion of a speaker | Keith A. Ballard, Marco Cattaneo, Dave A. Fitzpatrick, Robert E. Limbaugh, Niklas Jacob | 2001-04-17 |
| D357480 | Edge surround for speaker | Stuart W. Lumsden, Matthew Lyons, Allen S. Baron | 1995-04-18 |