Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6885858 | System and method for operating a billing system, and billing system | Reinhard Eder, Friedrich Koch | 2005-04-26 |
| 6850756 | Method of charging for telecommunications links within the context of call forwarding services | Andreas Berg | 2005-02-01 |