Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5524107 | Multiport multidrop digital system | Robert J. Duggan | 1996-06-04 |
| 5296643 | Automatic musical key adjustment system for karaoke equipment | Jen-Wei Kuo | 1994-03-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5524107 | Multiport multidrop digital system | Robert J. Duggan | 1996-06-04 |
| 5296643 | Automatic musical key adjustment system for karaoke equipment | Jen-Wei Kuo | 1994-03-22 |