| 5753028 |
Ferriferous bismuth vanadate pigments |
Harald Ochmann, Hansulrich Reisacher, Helmut Knittel, Norbert Mronga, Gunter Etzrodt |
1998-05-19 |
| 5451253 |
Preparation of transparent yellow iron oxide pigments |
Paul Klingelhoefer, Christoph Schwidetzky, Norbert Mronga, Ekkehard Schwab, Michael W. Nebel |
1995-09-19 |
| 5445672 |
Laked tris- or tetracationic polymethine dyes |
Friedrich Closs, Bernhard Albert |
1995-08-29 |
| 5273577 |
Bismuth phosphovanadate pigments |
Egon Liedek, Helmut Knittel, Hans Ulrich Reisacher, Norbert Mronga, Harald Ochmann |
1993-12-28 |
| 4851049 |
Thermostable bismuth vanadate/molybdate pigments |
Werner Ostertag, Christoph Schwidetzky, Helmut Knittel |
1989-07-25 |
| 4702775 |
Preparation of magnetite pigments: control of particle size |
Werner Ostertag, Roland Bauer |
1987-10-27 |
| 4629616 |
Basic chromium aluminum sulfates and their preparation |
Werner Ostertag, Dietrich Lach, Erwin Hahn |
1986-12-16 |
| 4530725 |
Preparation of thermally stable lead chromate pigments |
Werner Ostertag, Peter Dimroth, Egon Liedek, Helmut Knittel, Gunter Etzrodt |
1985-07-23 |
| 4455174 |
Yellow pigment containing bismuth vanadate and having the composition BiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6 |
Werner Ostertag, Knut Bittler |
1984-06-19 |
