Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6252943 | Telephone network having dual gateway interconnection architecture for handling emergency services | Leticia Garcia Johnson, Maria Walsh, Walter Paul Zahray | 2001-06-26 |
| 5910979 | Method for billing local communication services provided by an interexchange communication network | Anurag Goel, Fermin D. Peinado | 1999-06-08 |