Patents by Inventor William E. Sponsel

William E. Sponsel 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).

  • Publication number: 20040046934
    Abstract: Methods and apparatuses for measuring visual acuity. In one embodiment, a moving fixation target is displayed. A series of optotype letters appearing offset from the moving fixation target is also displayed, and each optotype letter corresponds to a visual acuity. Each optotype letter appears in one of four possible random quadrant locations adjacent the moving fixation target, and each optotype appears only for a limited time.
    Type: Application
    Filed: February 13, 2003
    Publication date: March 11, 2004
    Applicant: Board of Regents, The University of Texas System
    Inventors: William E. Sponsel, Christina Bui, John Simms, G. L. Mayo, K. J. Frasier
  • Patent number: 6415173
    Abstract: A method for analyzing the optic disc from photographs using vascular landmarks. Monochromatic simultaneous stereo images of an eye are obtained. Reference points are marked on each disc margin. The position of a cup base is estimated and intermediate measurements of the data are tabulated.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 2, 2002
    Inventors: William E. Sponsel, Joseph T. Kavanaugh
  • Patent number: 6313155
    Abstract: A method and composition for treating macular disorders. A pharmologically effective amount of a carbonic anhydrase inhibitor is combined with a pharmologically effective amount of an ocular hypotensive agent sufficient to improve visual function.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: November 6, 2001
    Assignee: Board of Regents, The University of Texas System
    Inventor: William E. Sponsel