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Franz-Ulrich Gehlen
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Krefeld, DE
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last 30 patents
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Patent Grant
Process for the purification of aromatic amines
Patent number
8,455,691
Issue date
Jun 4, 2013
Bayer MaterialScience AG
Knut Sommer
C07 - ORGANIC CHEMISTRY
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last 30 patents
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Patent Application
PROCESS FOR THE PREPARATION OF AROMATIC AMINES
Publication number
20100280271
Publication date
Nov 4, 2010
Bayer MaterialScience AG
Knut Sommer
C07 - ORGANIC CHEMISTRY
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Patent Application
Process for the purification of aromatic amines
Publication number
20090065347
Publication date
Mar 12, 2009
Knut Sommer
C07 - ORGANIC CHEMISTRY