Patents by Inventor Thomas P. Stephenson

Thomas P. Stephenson 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).

  • Patent number: 5865564
    Abstract: A fluid-fillable barrier includes a tubular, impermeable membrane and at least one tension member. The membrane has a first attachment area and a second attachment area. The tension member secures between, and extends from, the first attachment area to the second attachment area. When in tension, the tension member may pivot with respect to the membrane, and has a taut length which is less than one-half of the perimeter of a cross section of the membrane, the length and perimeter being measured at a common cross-section taken perpendicular to a longitudinal axis of the membrane.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: February 2, 1999
    Assignee: Aqua-Barrier, Inc.
    Inventors: Darren Andrew Miller, Donald L. Sullins, Guy D. Sullins, Thomas P. Stephenson
  • Patent number: 5148497
    Abstract: An image interpolator for converting an original image into an enhanced image, the interpolator including rule logic for embodying a rule specifying how pixel patterns associated with first subband image data transform into corresponding pixel patterns associated with second subband image data, the first and second subband image data being derived from a reference image; and conversion logic for generating the enhanced image from the original image based upon the rule.
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: September 15, 1992
    Assignee: Massachusetts Institute of Technology
    Inventors: Alex P. Pentland, Eero P. Simoncelli, Thomas P. Stephenson