Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662738 | Luster pigments based on multiply coated plateletlike metallic substrates | Norbert Mronga | 1997-09-02 |
| 5626661 | Luster pigments based on multiply coated plateletlike silicatic substrates | Norbert Mronga, Harald Ochmann, Joerg Adel | 1997-05-06 |
| 5624486 | Multiply coated metallic luster pigments | Norbert Mronga | 1997-04-29 |
| 5624487 | Preparation of bluish luster pigments | Helmut Schmidt, Werner Ostertag, Hermann Bidlingmaier, Norbert Mronga, Juan Antonio Gonzalez Gomez +2 more | 1997-04-29 |
| 5607504 | Multiply coated metallic luster pigments | Norbert Mronga | 1997-03-04 |
| 5540770 | Luster pigments with nitrogen-containing metal layers | Norbert Mronga, Harald Ochmann, J org Adel | 1996-07-30 |
| 5505991 | Production of silicon oxide-coated solid particles | Norbert Mronga, Juan Antonio Gonzalez Gomez, Reinhold Rieger, Reinhold Schlegel | 1996-04-09 |
| 5501731 | Carbon-containing luster pigments | Norbert Mronga, Werner Ostertag, Helmut Schmidt | 1996-03-26 |
| 5474605 | Doubly gas-phase passivated metallic pigments | Norbert Mronga, Harald Keller, Juan Antonio Gonzalez Gomez | 1995-12-12 |
| 5411586 | Luster pigments containing bismuth vanadate | Norbert Mronga, Harald Ochmann, Christoph Schwidetzky | 1995-05-02 |
| 5401306 | Luster pigments with a metal sulfide coating | Norbert Mronga | 1995-03-28 |
| 5364467 | Luster pigments based on multiply coated plateletlike metalic substrates | Norbert Mronga | 1994-11-15 |
| 5352286 | Gas-phase passivation of metal pigments | Norbert Mronga, Juan Antonio Gonzalez Gomez | 1994-10-04 |
| 5277711 | Mixtures useful as luster pigments | Helmut Schmidt, Werner Ostertag, Norbert Mronga | 1994-01-11 |