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Wolfgang Rambold
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Krefeld, DE
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last 30 patents
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Patent Grant
Finely divided iron oxide black pigments, a process for their prepa...
Patent number
4,921,542
Issue date
May 1, 1990
Bayer Aktiengesellschaft
Jakob Rademachers
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Corrosion-inhibiting paints and lacquers
Patent number
4,492,600
Issue date
Jan 8, 1985
Bayer Aktiengesellschaft
Horst Brunn
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Agglomerated ferromagnetic iron particles
Patent number
4,470,844
Issue date
Sep 11, 1984
Bayer Aktiengesellschaft
Jakob Rademachers
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Halogen-free zinc ferrite yellow pigments containing alumina and ph...
Patent number
4,443,264
Issue date
Apr 17, 1984
Bayer Aktiengesellschaft
Franz Hund
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Magnetic separation to improve purity of iron oxide pigments
Patent number
4,378,252
Issue date
Mar 29, 1983
Bayer Aktiengesellschaft
Peter Kiemle
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Production of low sulphur chromium (III) oxide
Patent number
4,235,862
Issue date
Nov 25, 1980
Bayer Aktiengesellschaft
Wolfgang Rambold
C01 - INORGANIC CHEMISTRY