Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10462294 | Method and apparatus for processing a communication request from a roaming voice over IP terminal | Arshad Khan, Chaoxin Qiu | 2019-10-29 |
| 9252981 | Method and apparatus for processing a communication request from a roaming voice over IP terminal | Arshad Khan, Chaoxin Qiu | 2016-02-02 |
| 9047465 | Methods and apparatus for automatic security checking in systems that monitor for improper network usage | Chaoxin Qiu, Diana Panek | 2015-06-02 |
| 8984135 | Methods and apparatus for load balancing in communication networks | Chaoxin Qiu, Robert F. Dailey | 2015-03-17 |
| 8576833 | Fault tolerant voice over Internet protocol (VoIP) systems and methods to operate the same | Chaoxin Qiu, Richard L. Khan, Satish Parolkar, Robert F. Dailey, James Jackson | 2013-11-05 |
| 8332514 | Methods and apparatus for load balancing in communication networks | Chaoxin Qiu, Robert F. Dailey | 2012-12-11 |
| 4649533 | Method and apparatus for retrieving remotely located information | Robert J. Redding, Christopher Fries | 1987-03-10 |