Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8543498 | Method and system for designating and tracking feature sets for individual accounts | Mark Mathias Silbernagel | 2013-09-24 |
| 8347364 | Systems and methods for user interface control | Mark Mathias Silbernagel | 2013-01-01 |
| 7953213 | Systems and methods for providing prepaid collect telecommunications service | Mark Mathias Silbernagel | 2011-05-31 |
| 7797734 | Systems and methods for user interface control | Mark Mathias Silbernagel | 2010-09-14 |