Patents by Inventor David M. Pratt

David M. Pratt 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).

  • Accessible assay and method of use
    Patent number: 7323139
    Abstract: An assay test strip and cassette. The test strip is positioned in a housing shaped and configured to allow a detector to access the test strip from the side, rather than from the lengthwise axis of the test strip. The housing may contain one or more test strips which may also be disposed on one or more surfaces of the housing. Preferably, the housing is generally C-shaped with the test strip spanning the space between the two arms of the C-shape. The housing is sealed to protect both the operator and instrument from possible contamination. The test strip is preferably embedded with paramagnetic particles and process chemistry specific for a particular application. Quantitative analysis may be accomplished using a magnetic reader device. In additional embodiments, detection is accomplished by visual means.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: January 29, 2008
    Assignee: Quantum Design, Inc.
    Inventors: Ronald T. LaBorde, Randall N. Taff, David M. Pratt
  • Accessible assay and method of use
    Publication number: 20040214347
    Abstract: An assay test strip and cassette. The test strip is positioned in a housing shaped and configured to allow a detector to access the test strip from the side, rather than from the lengthwise axis of the test strip. The housing may contain one or more test strips which may also be disposed on one or more surfaces of the housing. Preferably, the housing is generally C-shaped with the test strip spanning the space between the two arms of the C-shape. The housing is sealed to protect both the operator and instrument from possible contamination. The test strip is preferably embedded with paramagnetic particles and process chemistry specific for a particular application. Quantitative analysis may be accomplished using a magnetic reader device. In additional embodiments, detection is accomplished by visual means.
    Type: Application
    Filed: April 24, 2003
    Publication date: October 28, 2004
    Inventors: Ronald T. LaBorde, Randall N. Taff, David M. Pratt