Patents by Inventor David Wayne Hatchett

David Wayne Hatchett 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).

  • Device and method for non-invasive oxygen sensing of sealed packages
    Publication number: 20070243618
    Abstract: The present invention provides a system, method and composition for detecting exposure of the contents of a container to one or more gases using a gas sensitive package sensor. The gas sensitive package sensor includes a ruthenium-based luminescence indicator composition having a ruthenium-based luminescence compound having one or more optical properties dispersed within a gas permeable polymer matrix. Exposure to one or more gases modifies the one or more optical properties of the ruthenium-based luminescence compound.
    Type: Application
    Filed: April 11, 2006
    Publication date: October 18, 2007
    Applicant: OxySense, Inc.
    Inventors: David Wayne Hatchett, Byron Lee Bennett, Devinder Pal Singh Saini