Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741687 | System and method for providing prepaid communications | — | 2004-05-25 |
| 6731744 | Call processing system and service control point for handling calls to a call center | Minh Duy Khuc, Bryce A. Jones | 2004-05-04 |
| 6690664 | Call center communications system for handling calls to a call center | Minh Duy Khuc, Bryce A. Jones | 2004-02-10 |
| 6483909 | System and method for providing service assurance for prepaid telecommunication services | Minh Duy Khuc | 2002-11-19 |
| 6473505 | Call processing system for handling calls to a call center | Minh Duy Khuc, Bryce A. Jones | 2002-10-29 |
| 6459788 | Call center resource processor | Minh Duy Khuc, Bryce A. Jones | 2002-10-01 |
| 6366645 | System and method for providing service assurance for prepaid telecommunication services | Minh Duy Khuc | 2002-04-02 |
| 5828740 | Prepaid calling card external/adjunct database processor | Minh Duy Khuc | 1998-10-27 |