Patents by Inventor Robert J. Kapteyn

Robert J. Kapteyn 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).

  • High density lipoprotein cholesterol assay
    Patent number: 4188188
    Abstract: A reagent composition useful in assays for high density lipoprotein (HDL) cholesterol comprises heparin and a salt of a divalent metal cation such as MnCl.sub.2 dispersed in an inert filler comprising a polysaccharide, a terminal interlocking linear glucose polymer and a vinylpyrrolidone. The cholesterol containing serum sample acts as the milieu of the reaction as well as the solvent for the reagent composition itself.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: February 12, 1980
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Howard Willner, Robert J. Kapteyn