Patents by Inventor Patrick Devin Wigington

Patrick Devin Wigington 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).

  • Vacuum membrane extraction system
    Patent number: 7028562
    Abstract: The present invention relates to apparatus for sampling and analysis of gas phase molecules. A source of negative pressure is used to draw gas phase molecules through a gas-permeable membrane. The gas phase molecules are then directed into an analyzer, suitably a gas chromatograph.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: April 18, 2006
    Assignee: University of Maryland, Baltimore County
    Inventors: William R. LaCourse, Patrick Devin Wigington
  • Vacuum membrane extraction system
    Publication number: 20040154414
    Abstract: The present invention relates to apparatus for sampling and analysis of gas phase molecules. A source of negative pressure is used to draw gas phase molecules through a gas-permeable membrane. The gas phase molecules are then directed into an analyzer, suitably a gas chromatograph.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 12, 2004
    Inventors: William R. LaCourse, Patrick Devin Wigington