Patents by Inventor Patricia J. Kraft

Patricia J. Kraft 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 material for detecting and quantitating fetal erythrocytes in adults
    Patent number: 3975156
    Abstract: By differential elution of hemoglobin from fetal and adult erythrocytes using a succinic acid/succinate or a malic acid/malate buffer, fetal erythrocytes in adult blood may be detected and quantitated.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: August 17, 1976
    Assignee: Ortho Diagnostics, Inc.
    Inventors: Patricia J. Kraft, Marcia R. Thomas, Larry A. Kraft