Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6560226 | System and method for caching ported number information | Gregory D. Johnson | 2003-05-06 |
| 6535599 | System and method for processing ported calls | Dean C. Boldt, William L. Wiley | 2003-03-18 |
| 6529595 | Method and apparatus to process number portability data for a call | Khalid Mohamed Medhat | 2003-03-04 |