Issued Patents All Time
Showing 25 most recent of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11292917 | Golden effect pigments | Aron Wosylus, Heinrich Woelk, Stefan Wrobel | 2022-04-05 |
| 10894884 | Use of iron oxide coated aluminum flakes having red 1st order interference color in coatings | Aron Wosylus, Christoph Schwidetzky | 2021-01-19 |
| 10800926 | Non-magnetizable effect pigments | Aron Wosylus | 2020-10-13 |
| 9951194 | Iron oxide containing effect pigments, their manufacture and their use | Juergen Walker, Gabe Uzunian, Aron Wosylus, Christoph Schwidetzky | 2018-04-24 |
| 9701844 | Process for preparing metal oxide coated aluminium effect pigments | Aron Wosylus | 2017-07-11 |
| 9631064 | Process for preparing an effect pigment | Aron Wosylus | 2017-04-25 |
| 9427775 | Use of perlite based effect pigments for finishes with antique, or patina appearance | Ellen Schmidt | 2016-08-30 |
| 9388291 | Thin aluminum flakes | Aron Wosylus, Christof Kujat, Hans Rudolf Merstetter, Casper Mullertz | 2016-07-12 |
| 9045644 | Solid pigment preparations containing water-soluble surface-active polyurethane-base additives | Hans Ulrich Reisacher, Christian Krueger, Uwe Mauthe, Juan Antonio Gonzalez Gomez | 2015-06-02 |
| 8936799 | Pigments with improved sparkling effect | Norbert Mronga, Patrice Bujard, Steven Jones, Paul Cao | 2015-01-20 |
| 7387669 | Luster pigments having a pronounced glittering effect | Norbert Mronga, Oliver Seeger | 2008-06-17 |
| 7300510 | Goniochromatic bright pigments | Oliver Seeger, Norbert Mronga, Rainer Henning | 2007-11-27 |
| 6620233 | Goniochromatic luster pigments which are based on titanium dioxide-coated siliceous platelets heated in a reductive atmosphere | Oliver Seeger, Norbert Mronga, Jorg Adel | 2003-09-16 |
| 6533857 | Gloss pigments comprising an absorbent low-refractive coating | Arno Bohm, Oliver Seeger, Norbert Mronga, Thorsten Clemens | 2003-03-18 |
| 6531221 | Multilayer cholesteric pigments | Peter Schuhmacher, Norbert Schneider, Wolfgang Best, Peter Blaschka, Frank Meyer | 2003-03-11 |
| 6193794 | Goniochromatic luster pigments based on multiply coated iron oxide platelets | Oliver Seeger, Norbert Mronga | 2001-02-27 |
| 6187390 | Use of hydride-containing aluminum oxide for producing optically detectable markings and inscriptions | Oliver Seeger, Stefan Faber, Michael Veith, Eckehard Fritscher, Wilma M. Dausch | 2001-02-13 |
| 6139614 | Goniochromatic luster pigments based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere | Oliver Seeger, Norbert Mronga | 2000-10-31 |
| 6063179 | Goniochromatic gloss pigments based on coated silicon dioxide platelets | Norbert Mronga | 2000-05-16 |
| 5958125 | Goniochromatic luster pigments based on transparent, nonmetallic, platelet-shaped substrates | Norbert Mronga | 1999-09-28 |
| 5817853 | Preparation of acyloxyalkoxysilanes | Holger Friedrich, Bernd Leutner, Norbert Mronga | 1998-10-06 |
| 5763086 | Goniochromatic luster pigments with silicon-containing coating | Norbert Mronga, Jorg Adel | 1998-06-09 |
| 5733364 | Goniochromatic luster pigments with aluminum coating | Norbert Mronga, Jorg Adel | 1998-03-31 |
| 5733658 | Luster pigments based on reduced titania-coated silicate-based platelets | Claus Kaliba, Norbert Mronga, Werner Ostertag, Helmut Schmidt, Juan Antonio Gonzalez Gomez +2 more | 1998-03-31 |
| 5693135 | Interference pigments containing reduced titanium oxide layers for preparing forgeryproof documents and packaging | Norbert Mronga, Claus Kaliba, Werner Ostertag, Helmut Schmidt | 1997-12-02 |