Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570994 | Field layer speaker for consumer products | Charles W. Berthoud, James Skorko | 2003-05-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570994 | Field layer speaker for consumer products | Charles W. Berthoud, James Skorko | 2003-05-27 |