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Heidi Hengelsberg
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Mannheim, DE
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last 30 patents
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Patent Grant
Clathrate of bis �6-hydroxy-4-methyl-5-(3-methyl-imidazolium-1-yl)...
Patent number
5,919,914
Issue date
Jul 6, 1999
BASF Aktiengesellschaft
Manfred Ruske
C07 - ORGANIC CHEMISTRY
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Patent Grant
Imidazolymethylated copper phthalocyanine dyes
Patent number
5,496,378
Issue date
Mar 5, 1996
BASF Aktiengesellschaft
Heidi Hengelsberg
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Patent Grant
Basic azo dyes with a coupling component of the hydroxynaphthalenec...
Patent number
5,286,854
Issue date
Feb 15, 1994
BASF Aktiengesellschaft
Erwin Hahn
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...