Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9838443 | Real-time media control for audio and multimedia conferencing services | Eric Cheung | 2017-12-05 |
| 9614977 | Real-time media control for audio and multimedia conferencing services | Eric Cheung | 2017-04-04 |
| 8874759 | Method and apparatus for programming session initiation protocol back-to-back user agents | Pamela Zave, Eric Cheung, Thomas M. Smith | 2014-10-28 |
| 8725901 | Analysis tool for intra-node application messaging | Thomas M. Smith, Eric Cheung | 2014-05-13 |
| 8250216 | Method and apparatus for programming session initiation protocol back-to-back user agents | Pamela Zave, Eric Cheung, Thomas M. Smith | 2012-08-21 |
| 7949010 | Telecommunication network system and method in communication services using session initiation protocol | Eric Cheung, Kermit Hal Purdy, Xiaotao Wu, Pamela Zave | 2011-05-24 |
| 7881449 | Enhanced call notification service | Karrie Hanson, Gerald Karam, Healfdene Goguen, Donnie Henderson, Pamela Zave | 2011-02-01 |
| 7437481 | Methods and apparatus for utilizing user software to communicate with network-resident services | Thomas M. Smith, Pamela Zave | 2008-10-14 |
| 7251254 | Telecommunication network system and method in communication services using session initiation protocol | Eric Cheung, Kermit Hal Purdy, Xiaotao Wu, Pamela Zave | 2007-07-31 |