Patents by Inventor Argye I. Hillis

Argye I. Hillis 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).

  • Amblyopia screening
    Patent number: 4778267
    Abstract: Pre-literate children are screened for amblyopia utilizing a simple device. A pair of eyepieces are mounted by a static structure so that the fields of view through the eyepieces are segregated. A card having two different, spaced pictorial representations of common physical objects or beings is mounted to the static structure so that the pictorial representations are visible through the eyepieces. If the pre-literate child is not able to accurately report both of the different pictorial representations on the card, the child is sent for more detailed testing.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: October 18, 1988
    Assignees: The Johns Hopkins University, University of Southern California
    Inventors: Argye I. Hillis, Anne F. Walonker, Kenneth R. Diddie