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Max Dunnenberger
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Frenkendorf, CH
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last 30 patents
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Patent Grant
Process for the manufacture of color formers of indoles and anhydri...
Patent number
4,102,893
Issue date
Jul 25, 1978
Ciba-Geigy AG
Robert Garner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Quaternary ammonium-hydroxyaryl compounds
Patent number
4,025,556
Issue date
May 24, 1977
Ciba-Geigy AG
Max Schellenbaum
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of N-substituted indoles
Patent number
4,022,802
Issue date
May 10, 1977
Ciba-Geigy AG
Robert Garner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Asymmetrical oxalic acid diaryl amide stabilizers
Patent number
4,003,875
Issue date
Jan 18, 1977
Ciba-Geigy Corporation
Christian Luthi
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method for combating harmful microorganisms using 2-hydroxy-benzoph...
Patent number
3,993,779
Issue date
Nov 23, 1976
Ciba-Geigy AG
Max Dunnenberger
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...