Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6179908 | Iron oxide red pigments, process for the production of iron oxide red pigments and use thereof | Eckhard Bayer, Ulrich Meisen | 2001-01-30 |
| 6053972 | Non-silking iron oxide yellow pigments with high color density | Ulrike Pitzer, Rolf Naumann | 2000-04-25 |
| 6042642 | Iron oxide yellow pigments, a method of producing iron oxide yellow pigments and the use thereof | Eckhard Bayer, Ulrich Meisen | 2000-03-28 |
| 5916360 | Process for the preparation of iron oxide yellow pigments and the use thereof | Eckhard Bayer, Ulrich Meisen | 1999-06-29 |
| 5792250 | Process for the production of inorganically coated pigments and fillers | Jurgen Kischkewitz, Hilmar Rieck, Udo Holtmann | 1998-08-11 |
| 5723404 | Process for the production of mixed oxide powders for catalysts for the removal of nitrogen oxides | Kai Butje, Jurgen Kischkewitz, Udo Holtmann, Peter-Joachim Barenthien | 1998-03-03 |
| 5590599 | Method for regulating ink distribution in a printing machine | Joachim Muller | 1997-01-07 |
| 5181257 | Method and apparatus for determining register differences from a multi-color printed image | Gerd Steiner, Rudi Weniger, Rainer Otterbach, Erhard Schubert, Ralf Hofmann | 1993-01-19 |
| 5174817 | Process for the calcination of filter cakes with high solids contents being partly pre-dried in a directly heated rotary kiln | Bernd Holle, Peter Beumer, Hilmar Rieck, Jurgen Kischkewitz, Gerhard Wiederhoft | 1992-12-29 |
| 5041655 | Method of preparing 1,6-di(N.sup.3 -cyano-N.sup.1 -guanidino) hexane | Klaus Huthmacher, Axel Kleemann, Horst Bethge | 1991-08-20 |
| 4963028 | Densitometric sensing device for use in printing presses | Alfred Dorn, Joachim Muller | 1990-10-16 |
| 4831169 | Organopolysiloxane oils | Wolfgang Grape, Ottfried Schlak | 1989-05-16 |
| 4810305 | Hydrophobic pigments and fillers for incorporation in synthetic resins | Peter Panek, Horst Bornefeld, Dieter Rade, Wolfgang Ritter | 1989-03-07 |
| 4332196 | Pressurized arrangement including timers for metering ink on the fountain roller of a printing press | — | 1982-06-01 |