Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9578127 | Method and apparatus for call processing for SIP and ISUP interworking | Chaoxin Qiu, Lillian Dannenberg | 2017-02-21 |
| 9432467 | Systems and methods for location management and emergency support for a voice over internet protocol device | Chaoxin Qiu, Robert F. Dailey | 2016-08-30 |
| 9380440 | Method to implement E911 services in IMS (IP multimedia subsystem) | Dwayne Crawford, Min Lu | 2016-06-28 |
| 9264290 | System and method for location management and emergency support for a voice over internet protocol device | Chaoxin Qiu, Robert F. Dailey, Keith Joseph Allen, Geoffrey Zampiello | 2016-02-16 |
| 9231837 | Methods and apparatus for collecting, analyzing, and presenting data in a communication network | Kevin James Moisan, Juan Carlos Martinez, Michael Tisiker, Amit Rele | 2016-01-05 |
| 9019870 | Systems and methods for location management and emergency support for a voice over internet protocol device | Chaoxin Qiu, Robert F. Dailey | 2015-04-28 |
| 8938209 | Method to implement E911 services in IMS (IP multimedia subsystem) | Dwayne Crawford, Min Lu | 2015-01-20 |
| 8867526 | Method and apparatus for providing mobility for a voice over internet protocol service | Chaoxin Qiu | 2014-10-21 |
| 8798095 | Method and apparatus for call processing for SIP and ISUP interworking | Chaoxin Qiu, Lillian Dannenberg | 2014-08-05 |
| 8620257 | Systems and methods for location management and emergency support for a voice over internet protocol device | Chaoxin Qiu, Robert F. Dailey | 2013-12-31 |
| 8606901 | Facilitating deployment of new application services in a next generation network | Chaoxin Qiu, Robert F. Dailey | 2013-12-10 |
| 8576833 | Fault tolerant voice over Internet protocol (VoIP) systems and methods to operate the same | Chaoxin Qiu, William R. J. Chorley, Satish Parolkar, Robert F. Dailey, James Jackson | 2013-11-05 |
| 8531995 | Systems and methods for location management and emergency support for a voice over internet protocol device | Chaoxin Qiu, Robert F. Dailey | 2013-09-10 |
| 8396445 | Method to implement E911 services in IMS (IP Multimedia Subsystem) | Dwayne Crawford, Min Lu | 2013-03-12 |
| 8189568 | System and method for location management and emergency support for a voice over internet protocol device | Chaoxin Qiu, Robert F. Dailey, Keith Joseph Allen, Geoffrey Zampiello | 2012-05-29 |
| 7639792 | System and method for location management and emergency support for a voice over internet protocol device | Chaoxin Qiu, Robert F. Dailey, Keith Joseph Allen, Geoffrey Zampiello | 2009-12-29 |