Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5472640 | Conductive lamellar pigments | Hans-Dieter Bruckner | 1995-12-05 |
| 4867794 | Process for preparing rutile-coated mica pigments | Klaus Ambrosius, August Knapp, Helmut Plamper | 1989-09-19 |
| 4780140 | Platelet-shaped iron oxide pigments | Klaus-Dieter Franz, Ralf Emmert, Hans-Dieter Bruckner | 1988-10-25 |
| 4668570 | Lacquering process using nacreous pigments | Klaus Ambrosius, Hans-Joachim Graetz, Manfred Letsch | 1987-05-26 |
| 4537636 | Process for the preparation of nacreous pigments with improved gloss properties, products thereof, and compositions using said pigments | Horst Bernhard | 1985-08-27 |
| 4494993 | Nacreous pigments, their preparation and use | Horst Bernhard | 1985-01-22 |
| 4482389 | Nacreous pigments | Klaus-Dieter Franz, Klaus Ambrosius, Manfred Kieser | 1984-11-13 |