Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6453163 | Method to restore subscriber related information in a communication network data base system | Stefan Karapetkov, Wilhelm Müller | 2002-09-17 |
| 6351648 | Method for indicating that a text message is present in a message central module of a mobile radiotelephone network | Stefan Karapetkov, Wilhelm Müller | 2002-02-26 |