Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6781959 | Method and apparatus for determining troubleshooting information for completed calls in a telecommunications network | Mehryar Khalili Garakani, Jochen Weppner, John K. Ahlstrom, Stephen I. Schleimer | 2004-08-24 |