Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6801526 | Server for supporting the establishment of telephone calls through an IP network | Wolfgang Lautenschlager, Lothar Krank, Hartmut Weik | 2004-10-05 |
| 6763101 | Service unit using essential and non-essential service request message classifications | Wolfgang Lautenschlager | 2004-07-13 |