Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592545 | Voice enhancement system and method | Helena S. Ho, Michael K. Pratt, Thomas T. Oshidari | 1997-01-07 |
| 5471527 | Voice enhancement system and method | Helena S. Ho, Michael K. Pratt, Thomas T. Oshidari | 1995-11-28 |