Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10917782 | Internet of things services architecture | Richard H. Xu, Vitaliy G. Yurchenko, Richard M. Pellegrini | 2021-02-09 |
| 10911932 | Method and system for hub breakout roaming | Richard H. Xu, Hwan Jang Tang | 2021-02-02 |
| 10524116 | Internet of things services architecture | Richard H. Xu, Vitaliy G. Yurchenko, Richard M. Pellegrini | 2019-12-31 |
| 9788188 | Method and system for hub breakout roaming | Richard X. Xu, Hwan Jang Tang | 2017-10-10 |
| 8351421 | System and method for voice over internet protocol (VoIP) and facsimile over internet protocol (FoIP) calling over the internet | Hwan Jang Tang, Lizhong Zhang, Paul A. Skelly | 2013-01-08 |
| 8248957 | System and method for voice over internet protocol (VoIP) and facsimile over internet protocol (FoIP) calling over the internet | Hwan Jang Tang, Lizhong Zhang, Paul A. Skelly | 2012-08-21 |
| 7577131 | System and method for voice over internet protocol (VoIP) and facsimile over internet protocol (FoIP) calling over the internet | Hwan Jang Tang, Lizhong Zhang, Paul A. Skelly | 2009-08-18 |
| 7529225 | System and method for voice over internet protocol (VoIP) and facsimile over internet protocol (FoIP) calling over the internet | Hwan Jang Tang, Lizhong Zhang, Paul A. Skelly | 2009-05-05 |
| 7391731 | Method for determining best path | Paul A. Skelly | 2008-06-24 |