Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7680498 | Method for reverse signalling for a transmission service which is to be used during a mobile terminated-PSTN/ISDN originated-call | Thomas Hickethier, Jens Hofmann | 2010-03-16 |
| 7489931 | Method for the identification of a service | Robert Zaus | 2009-02-10 |