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Gerhard Bettermann
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Erftstadt, DE
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last 30 patents
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Patent Grant
Process for the preparation of alkali metal acetates
Patent number
5,496,482
Issue date
Mar 5, 1996
Hoechst Aktiengesellschaft
Gerhard Bettermann
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Liquid de-icing agent based on acetates and process for melting sno...
Patent number
5,238,592
Issue date
Aug 24, 1993
Hoechst Aktiengesellschaft
Achim Stankowiak
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for working up phosphoric acid
Patent number
4,971,778
Issue date
Nov 20, 1990
Hoechst AG.
Gerhard Bettermann
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Continuous process for complete removal or organic impurities from...
Patent number
4,906,445
Issue date
Mar 6, 1990
Hoechst Aktiengesellschaft
Gunther Schimmel
C01 - INORGANIC CHEMISTRY