Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7510518 | Method for making standing folds and knife folding machine with work transfer device | Arno Heinen, Roland Pietschmann, Detlef Rothgänger, Michael Sperling, Frank Matecka | 2009-03-31 |
| 5805711 | Method of improving the security of postage meter machines | Harald Windel, Frank Reisinger, Claus Freytag, Ralf Kubatzki, Marcus Hansel +5 more | 1998-09-08 |
| 5710721 | Internal postage meter machine interface circuit | Michael Sperling | 1998-01-20 |
| 5707158 | Method for generating a print format that is printed onto a carrier in a postage meter machine | Marcus Hansel, Norbert Knoth | 1998-01-13 |
| 5671146 | Method for improving the security of postage meter machines | Harald Windel, Frank Reisinger, Claus Freytag, Ralf Kubatzki, Enno Bischoff +3 more | 1997-09-23 |