Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5416830 | Integrated voice meassaging/voice response system | Duncan J. S. MacMillan, Jr., Lee Davis, Shin-Jou Fang | 1995-05-16 |
| 5179585 | Integrated voice messaging/voice response system | Duncan J. S. MacMillan, Jr., Lee Davis, Shin-Jou Fang | 1993-01-12 |