Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7809381 | Presence detection for cellular and internet protocol telephony | Justin A. Aborn, Sanjay Subir Jhawar, James O'Brien, Mats Samuelsson, Bruce Wiatrak +2 more | 2010-10-05 |
| 7403475 | Method and apparatus for allocating data packet pathways | Narothum Saxena, Yingchun Xu, Chandra Warrier, Claudio Taglienti | 2008-07-22 |
| 6501732 | System and method for controlling data flow in a wireless network connection | Yingchun Xu | 2002-12-31 |