Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639978 | Method for determining an entity responsible for billing a called party | Nadia Draizin, David Jonathan Max Walsh | 2003-10-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639978 | Method for determining an entity responsible for billing a called party | Nadia Draizin, David Jonathan Max Walsh | 2003-10-28 |