Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8625159 | Method for detecting errors in individual color separation images of a multi-color printing machine | Ingo Dreher, Heiko Hunold, Ralf Jachmann, Ralph Petersen, Frank Pierel +3 more | 2014-01-07 |
| 8532548 | Method for calibrating a printing machine using semi-transparent sheets | Heiko Hunold, Frank Pierel, Stefan Schrader | 2013-09-10 |
| 8405879 | Method for calibrating a multi-color printing machine | Ingo Dreher, Heiko Hunold, Frank Pierel, Stefan Schrader, Matthias Wecker | 2013-03-26 |
| 8351829 | Method of preventing a registration error while printing | Heiko Hunold, Stefan Schrader, Matthias Wecker | 2013-01-08 |
| 8301048 | Method and apparatus for controlling the registration of sheets | Ingo Dreher, Heiko Hunold, Karlheinz Peter, Stefan Schrader | 2012-10-30 |
| 8238808 | Method of ensuring a correct lateral registration setting and printing machine suitable therefor | Ingo Dreher, Stefan Schrader, Nikolai Neefe, Ralph Petersen, Bernhard G. Steuernagel +3 more | 2012-08-07 |
| 8160361 | Method for the detection of marks and printing machine | — | 2012-04-17 |
| 8155549 | Duplex electrophotographic printing using sacrificial sheets | Robert Hoyer, Stefan Schluenss, Stefan Schrader, Jens Ellerbrock | 2012-04-10 |
| 7593656 | Method and device for controlling registration | Ingo Dreher, Heiko Hunold, Karlheinz Peter, Stefan Schrader | 2009-09-22 |
| 7454153 | Cleaning of contamination in a printer as a function of a register error | Ingo Dreher, Stefan Schrader | 2008-11-18 |
| 7035557 | Method for correction of the calibration of a register mark accurate printing process | Ingo Dreher, Heiko Hunold, Stefan Schrader | 2006-04-25 |
| 6925278 | Process and control mechanism for avoiding register errors | Ingo Dreher, Heiko Hunold, Stefan Schrader | 2005-08-02 |
| 6871037 | Method for calibrating or recalibrating a conversion factor for determining the distance covered by a print substrate in a printing machine | Frank Pierel, Heiko Hunold | 2005-03-22 |
| 6819886 | Gloss/density measurement device with feedback to control gloss and density of images produced by an electrographic reproduction apparatus | Holger Runkowske, Muhammed Aslam, Eric K. Zeise | 2004-11-16 |