Patents by Inventor Frits Roeles

Frits Roeles 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).

  • Application of water-dispersible hydrophobic dyes or pigments as labels in immunoassays
    Patent number: 4373932
    Abstract: Processes, reagents and test kits for the qualitative and/or quantitative determination of an immunochemically reactive component, in which one or more labelled components are used, that are obtained by direct or indirect coupling of such a component or components to particles of an aqueous dispersion of a hydrophobic dye or pigment, or of polymer nuclei coated with such a dye or pigment.During the reaction or after an adequate reaction time the nature and/or the quantity of the dye is determined in the test medium, or optionally after a separation of the bound and free labelled components in one of the fractions.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: February 15, 1983
    Assignee: Akzona Incorporated
    Inventors: Thomas C. J. Gribnau, Frits Roeles, Johannes H. W. Leuvering