Patents by Inventor Steven Zweig

Steven Zweig 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).

  • Fluid conducting test strip with transport medium
    Patent number: 5968836
    Abstract: A reagent strip is provided for measuring the concentration of an analyte in a liquid test sample, such as glucose or cholesterol in whole blood. The reagent strip includes a testing pad containing a color-forming reagent system specific to the analyte. The testing pad is disposed so that a side with relatively small pores defines a testing surface and an opposite side with relatively larger pores defines a sample-receiving surface. A porous sample transport medium is attached to the sample-receiving surface. A change in coloration caused by the color-forming reagent system at the testing surface is quantitatively related to the concentration of the analyte in the liquid test sample. The reagent strip may optionally include a rigid support member which facilitates evaluation of the change in coloration by mechanical viewing means. Also provided is a method for determining the concentration of an analyte in a liquid test sample.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: October 19, 1999
    Assignee: Lifescan, Inc.
    Inventors: David P. Matzinger, Steven Zweig, Yeung S. Yu