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Ralf Emmert
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Bayonne, NJ, US
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last 30 patents
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Patent Grant
Light-stable cosmetic composition
Patent number
5,718,906
Issue date
Feb 17, 1998
Merck Patent Gesellschaft mit beschrankter Haftung
Roland Martin
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Golden color luster pigments
Patent number
5,009,711
Issue date
Apr 23, 1991
Merck Patent Gesellschaft mit beschrankter Haftung
Ralf Emmert
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Platelet-shaped iron oxide pigments
Patent number
4,780,140
Issue date
Oct 25, 1988
Merck Patent Gesellschaft mit beschrankter Haftung
Klaus D. Franz
C01 - INORGANIC CHEMISTRY