Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7356586 | Filtering system and method for voice protocol network analysis | Kaiwang Zhang | 2008-04-08 |
| 6604139 | Voice protocol filtering system and method | Kaiwang Zhang | 2003-08-05 |