Patents by Inventor Dagmar Kersten

Dagmar Kersten 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).

  • Water-absorbing polymers with supramolecular hollow molecules, method for producing them and use of the same
    Patent number: 6958429
    Abstract: The invention relates to absorbent polymers based on optionally partially neutralised, monoethylenically unsaturated, acid group-carrying monomers. The surfaces of said polymers are re-cross-linked. The inventive polymers also have cyclodextrines and/or cyclodextrine derivatives which are covalently and/or ionically bonded and/or included therein.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: October 25, 2005
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Christoph Bruhn, Edgar Herrmann, Jörg Issberner, Dagmar Kersten, Richard Mertens, Georg Werner
  • Water-absorbing polymers having supramolecular hollow molecules, method for producing them and use of the same
    Patent number: 6911572
    Abstract: The invention relates to absorbent polymers based on optionally partially neutralised, monoethylenically unsaturated, acid group-carrying monomers. The surfaces of said polymers are re-cross-linked. The inventive polymers also have cyclodextrines and/or cyclodextrine derivatives which are covalently and/or ionically bonded and/or included therein.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: June 28, 2005
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Christoph Bruhn, Edgar Herrmann, Jörg Issberner, Dagmar Kersten, Richard Mertens, Georg Werner
  • WATER-ABSORBING POLYMERS WITH SUPRAMOLECULAR HOLLOW MOLECULES, METHOD FOR PRODUCING THEM AND USE OF THE SAME
    Publication number: 20040157989
    Abstract: The invention relates to absorbent polymers based on optionally partially neutralised, monoethylenically unsaturated, acid group-carrying monomers. The surfaces of said polymers are re-cross-linked. The inventive polymers also have cyclodextrines and/or cyclodextrine derivatives which are covalently and/or ionically bonded and/or included therein.
    Type: Application
    Filed: February 11, 2004
    Publication date: August 12, 2004
    Inventors: Christoph Bruhn, Edgar Herrmann, Jorg Issberner, Dagmar Kersten, Richard Mertens, Georg Werner