Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6512818 | Method and system for releasing a voice response unit from a protocol session | Steven R. Donovan, John Hearty | 2003-01-28 |
| 6453034 | Method of and system for extending internet telephony over virtual private network direct access lines | Steven R. Donovan | 2002-09-17 |