Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9948759 | Network based call authentication | Jeffrey Haltom, Joseph G. Oleska, Vincent Lally, Heath W. Hendrickson | 2018-04-17 |
| 8873725 | Methods and apparatus for authenticating and authorizing ENUM registrants | Barry Paul Pershan, Elizabeth A. Geddes | 2014-10-28 |
| 8478892 | Session initiation protocol (SIP) overload protection | Stevan H. Leiden, Brian Somes, Timothy W. Bischoff, Arthur Doskow, Gary Lance Lockhart | 2013-07-02 |
| 8285868 | Session initiation protocol (SIP) overload protection | Stevan H. Leiden, Brian Somes, Timothy W. Bischoff, Arthur Doskow, Gary Lance Lockhart | 2012-10-09 |
| 6968050 | Methods and apparatus for authenticating and authorizing ENUM registrants | Barry Paul Pershan, Elizabeth A. Geddes | 2005-11-22 |