Patents by Inventor Kathleen Wardwell

Kathleen Wardwell 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 for quantitating and differentiating white blood cells
    Patent number: 4882284
    Abstract: A method is provided for discriminating white blood cells from red blood cells and platelets in an unlysed, whole blood sample. The white blood cells may be discriminated into five subpopulations: lymphocytes, monocytes, neutrophils, eosinophils and basophils. A red light absorbing fluorescent dye is utilized along with a measurement system comprised of a red light source and suitable detectors for red fluorescence, forward light scatter and right angle scatter.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: November 21, 1989
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Stefan J. Kirchanski, Kathleen Wardwell