Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7953213 | Systems and methods for providing prepaid collect telecommunications service | Mark Mathias Silbernagel | 2011-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7953213 | Systems and methods for providing prepaid collect telecommunications service | Mark Mathias Silbernagel | 2011-05-31 |