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Ulrich Kappler
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Cologne, DE
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last 30 patents
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Patent Grant
Process for the preparation of chlorine-substituted aromatic amines
Patent number
5,120,875
Issue date
Jun 9, 1992
Bayer Aktiengesellschaft
Udo Birkenstock
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for removing metal halides from liquid organic water-immisc...
Patent number
4,885,418
Issue date
Dec 5, 1989
Bayer Aktiengesellschaft
Sigurd Hartung
C07 - ORGANIC CHEMISTRY
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Patent Grant
Halogenated aromatic amines which are stable in color, and a proces...
Patent number
4,350,573
Issue date
Sep 21, 1982
Bayer Aktiengesellschaft
Helmuth Kritzler
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production of tris-(2-hydroxyaryl) esters of cyanuric acid
Patent number
4,142,048
Issue date
Feb 27, 1979
Bayer Aktiengesellschaft
Ulrich Kappler
C07 - ORGANIC CHEMISTRY