Patents by Inventor Oinwei Shi

Oinwei Shi 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).

  • Analytical test device and method for use in medical diagnoses
    Patent number: 6214629
    Abstract: An analytical test device is described for the immunochromatographic determination of the presence of one or more analytes in fluid samples. The device is configured such that the sample is allowed to enter the detection zone simultaneously from many different directions, eliminating stagnation of the flow of the sample. By selection of the porous substrate, the device also allows for the separation of red blood cells from plasma, providing a rapid test for one or more analytes in a sample of whole blood. The device of the present invention may measure more than one analyte simultaneously from a single sample, either by having multiple immunochromatographic pathways fed by a single sample, or multiple analytes detected in the same pathway by way of multiple capture antibodies.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: April 10, 2001
    Assignee: Spectral Diagnostics, Inc.
    Inventors: Helmut E. Freitag, Oinwei Shi, Charles A. Harrington