Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |