Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6035017 | Background speech recognition for voice messaging applications | Francis M. Fenton, Lawrence R. Rabiner | 2000-03-07 |
| 5623539 | Using voice signal analysis to identify authorized users of a telephone system | Charles S. Bassenyemukasa | 1997-04-22 |
| 5510777 | Method for secure access control | Roy Philip Weber | 1996-04-23 |