Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7633929 | Arrangement for providing ISUP transparency across voice over packet networks based on determined exchange type | Taiqi Fu, Selvakumaran N. Subramanian, Thang Tat Do, Henry Louis Fourie | 2009-12-15 |
| 6028858 | ANI-dormant connections for frame relay | Henry Rivers, Charles M. Corbalis, Muthu Muthuraman, Syed Rahman, Shyla Bearelly | 2000-02-22 |
| 5999524 | Dial access switching interface for frame relay | Charles M. Corbalis, Muthu Muthuraman, Syed Rahman, Shyla Bearelly, Gary Beckstrom | 1999-12-07 |