Patents by Inventor Silke Kowalski

Silke Kowalski 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).

  • Extraction of organic compounds from surfactants-containing aqueous solutions
    Patent number: 6063281
    Abstract: In a process for the extraction of organic compounds contained in an aqueous solution of non-ionic surfactants which contain the organic compounds to be extracted, the aqueous solution is intensely mixed with a liquid which is not miscible with water whereby the organic compounds transfer to the liquid which is not miscible with water, and the blend of the aqueous solution and the liquid which is not miscible with water is then separated, the mixing and the separation process being performed in a centrifugal extractor.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: May 16, 2000
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Karin Bonkhoff, Franz-Hubert Haegel, Silke Kowalski, Gunter Subklew