Issued Patents All Time
Showing 1–2 of 2 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 | Detlef Daase, 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 | Detlef Daase, Karl-Heinz Legat | 1999-07-13 |