Patents by Inventor Martha J. Hamilton

Martha J. Hamilton 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).

  • Immunoassay device and method
    Patent number: 5981298
    Abstract: A device and related method for performing one or more immunoassays to detect the presence of respective analytes in a sample. The device involves the use of a unitary bibulous material providing one or more flow paths having a common origin site and a plurality of respective reagent zones providing the reagents necessary for performing a visual readout, competitive immunoassay for the presence of the respective analyte.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: November 9, 1999
    Assignee: Surmodics, Inc.
    Inventors: Stephen J. Chudzik, Martha J. Hamilton
  • Device and method for simultaneously performing multiple competitive immunoassays
    Patent number: 5707818
    Abstract: A device and related method for simultaneously performing a plurality of immunoassays to detect the presence of respective analytes in a sample. The device involves the use of a unitary bibulous material providing one or more flow paths having a common origin site and a plurality of respective reagent zones providing the reagents necessary for performing a visual read-out, competitive immunoassay for the presence of the respective analyte.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: January 13, 1998
    Assignee: BSI Corporation
    Inventors: Stephen J. Chudzik, Martha J. Hamilton