Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7539309 | Method and system for GSM authentication during WLAN roaming | Toni Stadelmann | 2009-05-26 |
| 7496344 | Method and system for GSM billing during WLAN roaming | Toni Stadelmann, Jeremy Richard Conn | 2009-02-24 |