Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7643647 | Lay-in tile speaker system | Wilhelm R. Lowell, Jeffrey R. Garstick, Daryl Schoolfield | 2010-01-05 |
| 7120269 | Lay-in tile speaker system | Wilhelm R. Lowell, Jeffrey R. Garstick | 2006-10-10 |
| D467579 | Lay-in tile speaker system | Wilhelm R. Lowell, Jeffrey R. Garstick | 2002-12-24 |