Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6683946 | Local exchange carrier escape list for local number portability | Bert Lee Frey, Jr. | 2004-01-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6683946 | Local exchange carrier escape list for local number portability | Bert Lee Frey, Jr. | 2004-01-27 |