Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5909485 | Method of prepaying for consumption of telephone calls | Daniel Martin, Christian Grezes | 1999-06-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5909485 | Method of prepaying for consumption of telephone calls | Daniel Martin, Christian Grezes | 1999-06-01 |