Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836471 | Method and system for inter-operator handover between WCDMA and GSM | Harri Holma, Karl Tigerstedt, Atte Artamo, Kai Heikkinen, Achim Wacker | 2004-12-28 |
| 6681112 | Handovers of user equipment connections in wireless communications systems | Peter Muszynski, Kari Rikkinen | 2004-01-20 |