Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6754320 | Process, exchange, charge computer, charge billing computer and program modules for the processing of charge data for telecommunications services | Irina Muller, Ferdinand Geisbüsch, Bettina Althainz | 2004-06-22 |
| 5923652 | Method for tying additional function modules into a controlling facility of a switching system, and a switching system | Karl-Heinz Legat, Irina Muller | 1999-07-13 |
| 5822422 | Method and apparatus for controlling an exchange | Karl-Heinz Legat, Bernd Stahl | 1998-10-13 |