Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481173 | Flat panel sound radiator with special edge details | Kenneth P. Roy, Wesley T. K. Bischel | 2002-11-19 |
| 6386315 | Flat panel sound radiator and assembly system | Kenneth P. Roy, Wesley T. K. Bischel | 2002-05-14 |