Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8778494 | Pigment for laser marking | Gerhard Edler, Helge Kniess | 2014-07-15 |
| 7708823 | Semi-transparent interference pigments containing tin | Helge Kniess, Wolf-Dietrich Weber, Gerhard Pfaff | 2010-05-04 |
| 7611574 | Interference pigment with a high covering power | Helge Kniess, Gerhard Pfaff | 2009-11-03 |
| 6692561 | Intensely colored interference pigments | Sabine Schoen, Christoph Schmidt | 2004-02-17 |
| 6599355 | Interference pigments with great color strength | Christoph Schmidt, Sabine Schoen, Dieter Heinz | 2003-07-29 |
| 6579355 | Interference pigments | Christoph Schmidt, Dieter Heinz | 2003-06-17 |
| 6508876 | Colored interference pigment | Hans-Dieter Bruckner, Karl Osterried, Reiner Vogt | 2003-01-21 |
| 5827361 | Carbon-containing figments | Reiner Vogt, Gerhard Pfaff | 1998-10-27 |
| 5322561 | Conductive flaky pigments | Constanze Prengel | 1994-06-21 |
| 5302199 | Interference pigments | Constanze Prengel | 1994-04-12 |
| 5286291 | Pigments containing carbon black | Gerhard Pfaff | 1994-02-15 |
| 5223360 | Materials coated with plate-like pigments | Constanze Prengel, Klaus-Dieter Franz, Hartmut Hartner, Manfred Kieser, Axel von Daacke | 1993-06-29 |