Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692941 | Real-time text-to-speech conversion system | Richard P. Sprague | 1987-09-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692941 | Real-time text-to-speech conversion system | Richard P. Sprague | 1987-09-08 |