Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867795 | Plateletlike pigments based on iron oxide | Norbert Mronga | 1989-09-19 |
| 4851049 | Thermostable bismuth vanadate/molybdate pigments | Henning Wienand, Christoph Schwidetzky, Helmut Knittel | 1989-07-25 |
| 4840677 | Plateletlike two-phase pigment | — | 1989-06-20 |
| 4826537 | Lamellar pigments of the general formula Mn.sub.X -Al.sub.Y Fe.sub.2-(X+Y) O.sub.3 | — | 1989-05-02 |
| 4803143 | Colored single-component toners and their preparation | Erwin Czech, Franz-Ulrich Schmitt, Detlef Schulze-Hagenest | 1989-02-07 |