Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11384816 | Gearbox with internal diaphragm | William F. Smith | 2022-07-12 |
| 10502283 | Gearbox with internal diaphragm | William F. Smith | 2019-12-10 |
| 10352398 | Gearbox with internal diaphragm | William F. Smith | 2019-07-16 |
| D543195 | Eliptical flushmount speaker | Todd Ryan, Tommy Rucci | 2007-05-22 |