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Werner Voelker
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Bad Vilbel, DE
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last 30 patents
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Patent Grant
EMI shielding pigments, a process for their preparation and their use
Patent number
5,266,109
Issue date
Nov 30, 1993
Degussa Aktiengesellschaft
Werner Voelker
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Purple pigments, a process for their production and use thereof
Patent number
5,252,522
Issue date
Oct 12, 1993
Degussa Aktiengesellschaft
Bernd Dorbath
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method of producing a coilable ceramic veneer in unfired condition
Patent number
5,194,296
Issue date
Mar 16, 1993
Degussa AG
Josef Hammer
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES