Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7227837 | Fault tolerant virtual tandem switch | Haifeng Bi, George C. Allen, Jr., Weijing Chen, Janice Elaine Doerner, Mehran Esfandiari +8 more | 2007-06-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7227837 | Fault tolerant virtual tandem switch | Haifeng Bi, George C. Allen, Jr., Weijing Chen, Janice Elaine Doerner, Mehran Esfandiari +8 more | 2007-06-05 |