Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10979890 | Policy control framework | Richard H. Xu, Hwan Jang Tang, Yixin Fan | 2021-04-13 |
| 10917782 | Internet of things services architecture | Richard H. Xu, Ajay Joseph, Richard M. Pellegrini | 2021-02-09 |
| 10524116 | Internet of things services architecture | Richard H. Xu, Ajay Joseph, Richard M. Pellegrini | 2019-12-31 |
| 9444738 | System and method for monitoring the volume of calls carried by a voice over internet protocol telephone system | Hwan Jang Tang | 2016-09-13 |
| 9083771 | System and methods for multi-participant teleconferencing using preferred forms of telecommunication | — | 2015-07-14 |
| 8290137 | System and method for using exception routing tables in an internet based telephone call routing system | Lizhong Zhang | 2012-10-16 |
| 8265062 | System and method for accomplishing special call treatment in a voice over internet protocol telephone system | Hwan Jang Tang | 2012-09-11 |
| 7843835 | System and method of monitoring an internet based telephone call routing system | — | 2010-11-30 |