Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5881145 | Redirection of calls to ported directory numbers in telephone networks | Edgar Martinez | 1999-03-09 |
| 5867570 | Directory number portability in telephone networks | Mahmoud N. Bargout, Edgar Martinez, Sonu Mirchandani | 1999-02-02 |