Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5450470 | Script generator and process for programming automated TDD telephone system application | — | 1995-09-12 |
| 5253285 | Automated interactive telephone communication system for TDD users | — | 1993-10-12 |
| 5121421 | Interactive telephone communication system for hearing-impaired person | — | 1992-06-09 |