Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8204209 | Full duplex hands-free telephone system | Qing Liu, Wilson Or, Victor W. Mei | 2012-06-19 |
| 5392276 | Method for linking a party within a full duplex (dual channel) TDM network with a party external to the network | — | 1995-02-21 |
| 5272700 | Spectrally efficient broadband transmission system | David E. Hansen, Robert P. McNamara, James C. Long, Michael J. Serrone, Chinh Phan | 1993-12-21 |