Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8934475 | Distributed SIP-based transfer feature | Liang Wu, Henry Yao-Tsu Chen, Michael H. McClung, Jeffery A. Sanders | 2015-01-13 |
| 8788704 | Sending incoming calling ID to devices after initiation of a call | Henry Yao-Tsu Chen, Jerry Liou, Jeffery A. Sanders, Tom Desjardins | 2014-07-22 |
| 8121282 | Call park/retrieve using SIP | Liang Wu, Henry Yao-Tsu Chen, Michael H. McClung, Jeffery A. Sanders | 2012-02-21 |