Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8478756 | Contextual document attribute values | Achim Weigel, Lars Erbe | 2013-07-02 |
| 8060832 | Managing information display | Marita Kruempelmann, Hans-Jurgen Richstein | 2011-11-15 |
| 7693948 | Email traffic integration into a knowledge management system | Roland Preussmann, Hans-Juergen Richstein | 2010-04-06 |
| 7191410 | Managing information display | Marita Kruempelmann, Hans-Jurgen Richstein | 2007-03-13 |