Patents by Inventor Alexander Hans Wertheim

Alexander Hans Wertheim 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).

  • Visual prominence meter
    Patent number: 5953117
    Abstract: Method for a visual measurement, in which an image sector of an image with a target object is presented to an eye of an operative by a display unit, and in which the fovea of the eye is placed into such a reference position relative to the display unit, or the image sector is shifted in such a way towards the periphery relative to the fovea of the eye in a reference position, that the target object lies outside the fovea and the operative decides whether the target object is still visible, and the extent to which the target object is situated outside the reference position is determined.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: September 14, 1999
    Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek (TNO)
    Inventors: Frank Leonard Kooi, Alexander Hans Wertheim, Kees Moddemeijer