Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5574796 | Loudspeaker installing | — | 1996-11-12 |
| 5027403 | Video sound | William R. Short, Christopher B. Ickler, Timothy Holl | 1991-06-25 |
| 4984273 | Enhancing bass | J. Richard Aylward, Timothy Holl | 1991-01-08 |
| 4577069 | Electroacoustical transducer | — | 1986-03-18 |