Patents by Inventor Valerie Leesch

Valerie Leesch 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).

  • Destruction of microbial products by enzymatic digestion
    Patent number: 8349813
    Abstract: Methods of treating a dialysis component by providing a dialysis component and contacting the dialysis component with an enzyme are provided. The enzyme breaks down microbial contaminants in the dialysis component. The enzyme may be separated from the dialysis component to provide a purified dialysis component. The purified dialysis component may be substantially free of microbial contaminants that cause a cytokine response in humans.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: January 8, 2013
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Richard J. Johnson, Valerie Leesch, Clifford Holmes, Run Wang
  • REMOVAL OF SUBSTANCES IN DIALYSIS SOLUTIONS AND DIALYSIS COMPONENTS BY ION EXCHANGE ADSORPTION
    Publication number: 20090236284
    Abstract: Methods for removing substances from dialysis solutions and dialysis components using ion exchange adsorption are provided. In a general embodiment, the present disclosure provides a method for removing a substance from a dialysis solution. The method comprises providing a dialysis solution and passing the dialysis solution through an ion exchange resin so that at least a portion of the overall amount of the substance is removed from the dialysis solution by being adsorbed onto the ion exchange resin. The ion exchange resin can comprise an anion exchange resin or a cation exchange resin depending on the substances that are desired to be removed from the dialysis solution.
    Type: Application
    Filed: March 20, 2008
    Publication date: September 24, 2009
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Richard Johnson, Beverly Johnson, Valerie Leesch
  • DESTRUCTION OF MICROBIAL PRODUCTS BY ENZYMATIC DIGESTION
    Publication number: 20090239821
    Abstract: Methods of treating a dialysis component by providing a dialysis component and contacting the dialysis component with an enzyme are provided. The enzyme breaks down microbial contaminants in the dialysis component. The enzyme may be separated from the dialysis component to provide a purified dialysis component. The purified dialysis component may be substantially free of microbial contaminants that cause a cytokine response in humans.
    Type: Application
    Filed: March 19, 2009
    Publication date: September 24, 2009
    Applicants: Baxter International Inc., Baxter Healthcare S. A.
    Inventors: Richard J. Johnson, Valerie Leesch, Clifford Holmes, Run Wang