Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8848968 | Mechanically adjustable variable flux speaker | Thomas A. James, William L. Watts | 2014-09-30 |
| 8249292 | Mechanically adjustable variable flux speaker | Thomas A. James, William L. Watts | 2012-08-21 |