Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6343329 | Telecommunication system and method for exchanging information between an E-mail service and a subscriber in a telecommunication network | Rainer Landgraf | 2002-01-29 |
| 6308069 | Method and communication system for the first-time entry of subscriber data of a mobile subscriber into a central subscriber data base | Bernhard Freitag | 2001-10-23 |