Patents by Inventor Scott L. Stewart

Scott L. Stewart 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).

  • Magnetic field sensing for tamper-indicating devices
    Patent number: 10147289
    Abstract: Sensing devices, systems and methods for securing articles against tampering using a unique magnetic field signature measured at two different times are provided. One or more sensing devices are secured to a ferrous surface portion of a target container. The sensing devices are secured using a plurality of magnets. The unique magnetic field signature sensed by a sensing device is produced by a combination of the plurality of magnets of the sensing device and the ferrous surface portion of the target container and earth's magnetic field. The two different times being one of a baseline measurement session and one of an observation measurement session. An observation measurement session may be triggered by a shock event or periodically.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: December 4, 2018
    Assignee: UT-BATTELLE, LLC
    Inventors: Charles L. Britton, Jr., Steven S. Frank, Michael J. Kuhn, Andrzej Nycz, Chris A. Pickett, Scott L. Stewart, Robert J. Warmack, Richard A. Willems, James R. Younkin
  • MAGNETIC FIELD SENSING FOR TAMPER-INDICATING DEVICES
    Publication number: 20180293860
    Abstract: Sensing devices, systems and methods for securing articles against tampering using a unique magnetic field signature measured at two different times are provided. One or more sensing devices are secured to a ferrous surface portion of a target container. The sensing devices are secured using a plurality of magnets. The unique magnetic field signature sensed by a sensing device is produced by a combination of the plurality of magnets of the sensing device and the ferrous surface portion of the target container and earth's magnetic field. The two different times being one of a baseline measurement session and one of an observation measurement session. An observation measurement session may be triggered by a shock event or periodically.
    Type: Application
    Filed: April 5, 2018
    Publication date: October 11, 2018
    Inventors: Charles L. Britton, JR., Steven S. Frank, Michael J. Kuhn, Andrzej Nycz, Chris A. Pickett, Scott L. Stewart, Robert J. Warmack, Richard A. Willems, James R. Younkin