Patents by Inventor Wilhelm Berlenbach

Wilhelm Berlenbach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Aqueous dyestuff dispersions
    Patent number: 4186029
    Abstract: Aqueous dyestuff dispersions which contain water-insoluble dyestuffs and water-soluble oxyalkylation products of compounds which are obtainable by the addition of styrene or its derivatives onto phenols or naphthols, or derivatives of such oxyalkylation products, are suitable for pigmenting natural or synthetic materials.
    Type: Grant
    Filed: July 19, 1978
    Date of Patent: January 29, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Volker Aign, Hans Schulze, Fritz Bremer, Reinhold Hornle, Karlheinz Wolf, Wilhelm Berlenbach, Peter Rasche