Patents Assigned to Disease Detection International Inc.
  • Bi-directional lateral chromatographic test device
    Patent number: 5006474
    Abstract: A chromatic test device for the performance of immuno- or chemical assays wherein a unitary planar fibrous filter body incorporates a sample application zone, a separation zone and a reaction zone and the application zone is in fluid communication with a first absorbent and the reaction zone is in fluid communication with a second absorbent to establish bilateral flow of the fluid component of the sample and of the analyte applied to the zones during the performance of an assay.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: April 9, 1991
    Assignee: Disease Detection International Inc.
    Inventors: Frederick C. Horstman, Julie Whiteside