Issued Patents All Time
Showing 51–62 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5827361 | Carbon-containing figments | Klaus Bernhardt, Reiner Vogt | 1998-10-27 |
| 5753024 | Grey pigments containing tin | Reiner Vogt, Klaus Bernhard, Matthias Kuntz, Susanne Rudolph, Sylvia Schmidt | 1998-05-19 |
| 5702518 | Gold pigments | Reiner Vogt, Klaus Bernhard | 1997-12-30 |
| 5611852 | Stabilized conductive pigment | Hans-Dieter Bruckner | 1997-03-18 |
| 5536447 | Substrate-free conductive pigments | Gerd Bauer | 1996-07-16 |
| 5350448 | Electrically conductive pigments | Johann Dietz, Klaus-Dieter Franz, Reiner Vogt, Katsuhisa Nitta | 1994-09-27 |
| 5320781 | Conductive pigment | Otto Stahlecker, Manfred Thon, Ralf Glausch, Manfred Kieser, Wilhelm Gobel | 1994-06-14 |
| 5286291 | Pigments containing carbon black | Klaus Bernhardt | 1994-02-15 |
| 4984977 | Screw-type extruder having a starting valve and throttle | Albert Grimminger, Wolfgang Lauser, Franz-Josef Müller, Edgar Schlipf | 1991-01-15 |
| 4754539 | Method and extractor device for separating worm elements of an extruder from a worm shaft | Arno Knoll, Wolfgang Worz | 1988-07-05 |
| 4488215 | Method and apparatus for controlling the load current of a pulsed frequency converter | Albert Wick | 1984-12-11 |
| 4480301 | Method and apparatus for controlling a pulsed frequency converter | Albert Wick | 1984-10-30 |