Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9226148 | Access method in a WLAN for an IP mobile telephone with authentication by means of an HLR | Walter Heutschi, Peter Zbaeren | 2015-12-29 |
| 8422990 | Switching system and corresponding method for unicast or multicast end-to-end data and/or multimedia stream transmissions between network nodes | Walter Heutschi, Peter Zbaeren | 2013-04-16 |
| 8213900 | Switching system and corresponding method for unicast or multicast end-to-end data and/or multimedia stream transmissions between network nodes | Walter Heutschi, Peter Zbaeren | 2012-07-03 |
| 7797243 | Method and system for content-based billing in IP networks | Walter Heutschi, Peter Zbaren, Hans Ulrich Paul | 2010-09-14 |
| 7539309 | Method and system for GSM authentication during WLAN roaming | Michael Kauz | 2009-05-26 |
| 7496344 | Method and system for GSM billing during WLAN roaming | Michael Kauz, Jeremy Richard Conn | 2009-02-24 |