Patents by Inventor Brigitte Gambke

Brigitte Gambke 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).

  • Method and reagent for determining the ionic strength or specific gravity of aqueous liquids
    Patent number: 5106752
    Abstract: The ionic strength or the specific gravity of an aqueous liquid is determined by mixing the liquid with a reagent composition which contains at least one pH buffer substance but no polyelectrolyte polymer, or at least one pH buffer substance and/or at least one complex former, determining the pH of the mixture, and evaluating the determined value.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: April 21, 1992
    Assignee: Boehringer Mannheim GmbH
    Inventors: Dieter Mangold, Brigitte Gambke
  • Method and reagent for determining the ionic strength of specific gravity of aqueous liquids
    Patent number: 5064615
    Abstract: The ionic strength or the specific gravity of an aqueous liquid is determined by mixing the liquid with a reagent composition which contains at least one pH buffer substance but no polyelectrolyte polymer, or at least one pH buffer substance and/or at least one complex former, determining the pH of the mixture, and evaluating the determined value.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: November 12, 1991
    Assignee: Boehringer Mannheim GmbH
    Inventors: Dieter Mangold, Brigitte Gambke