Patents by Inventor Robert L. Feldman

Robert L. Feldman 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).

  • Comparator for optic disc analysis and method of use thereof
    Patent number: 4824238
    Abstract: A method is provided of comparing eye fundus slides for analysis. This method includes using an archival slide for a reference, preparing a current eye fundus slide and comparison with the reference and using a two-projector system for superimposing the image of the current eye fundus slide on the image of the reference.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: April 25, 1989
    Assignee: George L. Spaeth
    Inventors: Robert L. Feldman, George L. Spaeth