| 6620233 |
Goniochromatic luster pigments which are based on titanium dioxide-coated siliceous platelets heated in a reductive atmosphere |
Oliver Seeger, Raimund Schmid, Norbert Mronga |
2003-09-16 |
| 5958126 |
Bismuth vanadate pigments |
Boubacar Camara, Norbert Mronga |
1999-09-28 |
| 5763086 |
Goniochromatic luster pigments with silicon-containing coating |
Raimund Schmid, Norbert Mronga |
1998-06-09 |
| 5733364 |
Goniochromatic luster pigments with aluminum coating |
Raimund Schmid, Norbert Mronga |
1998-03-31 |
| 5614346 |
Metal oxide- and metal-coated carriers for electrophotography |
Rainer Dyllick-Brenzinger |
1997-03-25 |
| 5534378 |
Carriers doubly coated with metal oxide and intended for electro-photography |
Rainer Dyllick-Brenzinger |
1996-07-09 |
| 5512264 |
Finely divided blue molybdenum oxide |
Erwin Czech |
1996-04-30 |
