Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7519386 | Mobile communication device having music player navigation function and method of operation thereof | Klaus Kespohl, Karsten Lehn, Andre Koll, Konrad Brisse, Peter Buth | 2009-04-14 |
| 7133706 | Mobile communication device having a keyboard including a keypad | Klaus Kespohl, Karsten Lehn, Matthias Jobst, Konrad Brisse, Peter Buth | 2006-11-07 |