Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7433613 | Method and device for setting the toner concentration in the developer station of an electrophotographic printer or copier | Alfred Zollner, Bernhard Hochwind, Wolfgang Schullerus, Volkhard Maess, Hans-Detlef Groeger | 2008-10-07 |
| 6771913 | Apparatus and method for acquiring the nature of a toner particle layer and the moisture content of a carrier material in a printer or copier | Markus Jeschonek, Wolfgang Schullerus, Alfred Zollner | 2004-08-03 |
| 6286925 | Method of controlling piezo elements in a printhead of a droplet generator | Joachim Heinzl, Alfred Zollner, Gerhard Beurer, Joachim Kretschmer | 2001-09-11 |