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Pigment mixture
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Patent number 7,887,849
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Issue date Feb 15, 2011
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Merck Patent GmbH
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Dieter Heinz
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Lustrous black interference pigments
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Patent number 7,303,622
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Issue date Dec 4, 2007
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Merck Patent Gesellschaft mit beschrankter Haftung
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Manuela Loch
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Pigments
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Patent number 6,818,051
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Issue date Nov 16, 2004
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Merck GmbH
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Ralf Anselmann
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B44 - DECORATIVE ARTS
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Pigment mixture
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Patent number 6,517,628
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Issue date Feb 11, 2003
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Merck Patent GmbH
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Gerhard Pfaff
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Coated spherical SiO.sub.2 particles
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Patent number 5,846,310
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Issue date Dec 8, 1998
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Merck Patent Gesellschaft mit beschrankter Haftung
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Tamio Noguchi
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE