Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8139810 | Motorcycle speaker system | Mark J. Armitage, Jonathan Cole Harris, Robert Hazelwood, Scott Hein, Benjamin Hodge, IV +1 more | 2012-03-20 |
| 8121336 | Directional loudspeaker to reduce direct sound | Steven W. Hutt, Ryan J. Mihelich, Mark J. Armitage | 2012-02-21 |
| 8031879 | Sound processing system using spatial imaging techniques | Bradley F. Eid | 2011-10-04 |
| RE41384 | Dipole speaker headrests | — | 2010-06-22 |
| 7466832 | Seatback audio controller | — | 2008-12-16 |
| 7451006 | Sound processing system using distortion limiting techniques | Bradley F. Eid | 2008-11-11 |
| 7206413 | Sound processing system using spatial imaging techniques | Bradley F. Eid | 2007-04-17 |
| 7177432 | Sound processing system with degraded signal optimization | Bradley F. Eid | 2007-02-13 |
| 7149321 | Electro-dynamic loudspeaker mounting system | Steven W. Hutt | 2006-12-12 |
| 6991289 | Seatback audio system | — | 2006-01-31 |
| 5887071 | Dipole speaker headrests | — | 1999-03-23 |
| 5883961 | Sound system | Roger E. Shively | 1999-03-16 |
| 5883967 | Slotted diaphragm loudspeaker | — | 1999-03-16 |
| 5142260 | Transducer motor assembly | — | 1992-08-25 |
| 5123053 | Loudspeaker suspension | — | 1992-06-16 |
| 5081684 | Shallow loudspeaker with slotted magnet structure | — | 1992-01-14 |
| 5022488 | Transducer enclosure | — | 1991-06-11 |
| 4809338 | Automotive sound system | — | 1989-02-28 |
| 4554414 | Multi-driver loudspeaker | — | 1985-11-19 |
| 4497981 | Multi-driver loudspeaker | — | 1985-02-05 |