Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726697 | Document storage in printers | Dieter Mink, Dieter Stellmach | 1988-02-23 |
| 4701063 | Printing apparatus with document cutting device | Hans-Joachim Wysk, Dieter Stellmach, Bernhard Nolte, Gerd Gronwald | 1987-10-20 |