Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6389011 | ATM-based distributed virtual tandem switching system | Haifeng Bi, Steven R. Partridge, Samuel Sigarto, Richard W. Stephenson | 2002-05-14 |
| 6345048 | ATM-based distributed virtual tandem switching system | Haifeng Bi, Steven R. Partridge, Samuel Sigarto, Richard W. Stephenson | 2002-02-05 |