Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8798253 | Network routing | Curtis E. Allen, Mariafranca Gregorat, Steven L. Lass, Richard L. McClain, Sandra A. Paiement +5 more | 2014-08-05 |
| 8310958 | Routing calls in a network | David E. Phelps, Brian S. Badger | 2012-11-13 |
| 6763098 | Call blocking based on call properties | Curtis E. Allen, Deanna D. Willoughby | 2004-07-13 |
| 6522734 | Transaction billing for special service telephone numbers | Curtis E. Allen, Shannon S. Smith, Deanna D. Willoughby | 2003-02-18 |
| 5870455 | Enhanced voice services load balancing | Jeffrey W. Campbell, Judy A. Moldenhauer, Allen Holmes | 1999-02-09 |