Patents by Inventor Randall Madsen

Randall Madsen 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).

  • Apparatus and methods for detecting analytes
    Patent number: 9823172
    Abstract: The present invention provides an apparatus for retaining solid state reagents and/or for processing sample for a diagnostic test, where the apparatus avoids liquid “hang-up” that would otherwise result in loss of sample or fluid volume during sample transfer. The invention further provides diagnostic methods that employ the apparatus, so as to provide sensitive and accurate analyte detection.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: November 21, 2017
    Assignee: Nexus DX, Inc.
    Inventors: Randall Madsen, Robert Klepper
  • APPARATUS AND METHODS FOR DETECTING ANALYTES
    Publication number: 20140370617
    Abstract: The present invention provides an apparatus for retaining solid state reagents and/or for processing sample for a diagnostic test, where the apparatus avoids liquid “hang-up” that would otherwise result in loss of sample or fluid volume during sample transfer. The invention further provides diagnostic methods that employ the apparatus, so as to provide sensitive and accurate analyte detection.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 18, 2014
    Applicant: Nexus DX, Inc.
    Inventors: Randall Madsen, Robert Klepper
  • Method and apparatus for post-transfer assaying of material on solid support
    Patent number: 5559032
    Abstract: A method and an apparatus useful as a secondary level assaying tool for qualitative and quantitative confirmation of results obtained by primary separation techniques and their correlation with a specific function or property of the tested sample. An apparatus is useful for the post-transfer development assaying on the solid support of the biological samples already assayed by standard separation techniques such as blotting or chromatography.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: September 24, 1996
    Inventors: Patrick C. Pomeroy, Randall Madsen, Wai P. Chan, Gary Lemke