Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5800824 | Use of metal oxide-doped zinc oxides for cosmetic purposes | Ellen Pfrommer, Oliver Seeger | 1998-09-01 |
| 5763086 | Goniochromatic luster pigments with silicon-containing coating | Raimund Schmid, Jorg Adel | 1998-06-09 |
| 5753028 | Ferriferous bismuth vanadate pigments | Harald Ochmann, Hansulrich Reisacher, Helmut Knittel, Gunter Etzrodt, Henning Wienand | 1998-05-19 |
| 5738801 | Hydrophobic silica aerogels | Bernd Ziegler, Friedhelm Teich, Gunter Herrmann | 1998-04-14 |
| 5733658 | Luster pigments based on reduced titania-coated silicate-based platelets | Raimund Schmid, Claus Kaliba, Werner Ostertag, Helmut Schmidt, Juan Antonio Gonzalez Gomez +2 more | 1998-03-31 |
| 5733364 | Goniochromatic luster pigments with aluminum coating | Raimund Schmid, Jorg Adel | 1998-03-31 |
| 5693135 | Interference pigments containing reduced titanium oxide layers for preparing forgeryproof documents and packaging | Raimund Schmid, Claus Kaliba, Werner Ostertag, Helmut Schmidt | 1997-12-02 |
| 5662738 | Luster pigments based on multiply coated plateletlike metallic substrates | Raimund Schmid | 1997-09-02 |
| 5626661 | Luster pigments based on multiply coated plateletlike silicatic substrates | Raimund Schmid, Harald Ochmann, Joerg Adel | 1997-05-06 |
| 5624486 | Multiply coated metallic luster pigments | Raimund Schmid | 1997-04-29 |
| 5624487 | Preparation of bluish luster pigments | Helmut Schmidt, Werner Ostertag, Hermann Bidlingmaier, Juan Antonio Gonzalez Gomez, Claus Kaliba +2 more | 1997-04-29 |
| 5607504 | Multiply coated metallic luster pigments | Raimund Schmid | 1997-03-04 |
| 5540770 | Luster pigments with nitrogen-containing metal layers | Raimund Schmid, Harald Ochmann, J org Adel | 1996-07-30 |
| 5505991 | Production of silicon oxide-coated solid particles | Raimund Schmid, Juan Antonio Gonzalez Gomez, Reinhold Rieger, Reinhold Schlegel | 1996-04-09 |
| 5501731 | Carbon-containing luster pigments | Raimund Schmid, Werner Ostertag, Helmut Schmidt | 1996-03-26 |
| 5496674 | Particles suitable as carriers for electrophotography | Joerg Adel, Erwin Czech | 1996-03-05 |
| 5474605 | Doubly gas-phase passivated metallic pigments | Raimund Schmid, Harald Keller, Juan Antonio Gonzalez Gomez | 1995-12-12 |
| 5451253 | Preparation of transparent yellow iron oxide pigments | Paul Klingelhoefer, Christoph Schwidetzky, Henning Wienand, Ekkehard Schwab, Michael W. Nebel | 1995-09-19 |
| 5411586 | Luster pigments containing bismuth vanadate | Raimund Schmid, Harald Ochmann, Christoph Schwidetzky | 1995-05-02 |
| 5401306 | Luster pigments with a metal sulfide coating | Raimund Schmid | 1995-03-28 |
| 5374306 | Luster pigments based on metal oxide-coated aluminum platelets having a total carbon content of less than 0.1% by weight | Reinhold Schlegel, Reinhold Rieger | 1994-12-20 |
| 5364467 | Luster pigments based on multiply coated plateletlike metalic substrates | Raimund Schmid | 1994-11-15 |
| 5352286 | Gas-phase passivation of metal pigments | Raimund Schmid, Juan Antonio Gonzalez Gomez | 1994-10-04 |
| 5277711 | Mixtures useful as luster pigments | Helmut Schmidt, Werner Ostertag, Raimund Schmid | 1994-01-11 |
| 5273577 | Bismuth phosphovanadate pigments | Egon Liedek, Helmut Knittel, Hans Ulrich Reisacher, Harald Ochmann, Henning Wienand | 1993-12-28 |