Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7277534 | Communications system and method | Axel Buerck, Antonius Emmerink, Egon Klein, Helmut Rackl, Johann-Heinrich Schinke +4 more | 2007-10-02 |
| 5513258 | Method and apparatus for processing call number information for a switching system | Klaus Wille, Karl-Heinz Hass | 1996-04-30 |