Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8700786 | Systems and methods for termination of session initiation protocol | Koan S. Chong, Mark A. Ratcliffe | 2014-04-15 |
| 8239554 | Systems and methods for termination of session initiation protocol | Koan S. Chong, Mark A. Ratcliffe | 2012-08-07 |
| 7366782 | Systems and methods for termination of session initiation protocol | Koan S. Chong, Mark A. Ratcliffe | 2008-04-29 |