Patents by Inventor Heinz Keesen

Heinz Keesen 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).

  • Thixotropising agents for unsaturated polyester resins
    Patent number: 4462926
    Abstract: Combinations of cyclohexyl amides of saturated fatty acids and oligomeric ester amides are eminently suitable for use as thixotropising agents for unsaturated polyester resins.
    Type: Grant
    Filed: August 25, 1982
    Date of Patent: July 31, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Prater, Heinz Keesen