Patents by Inventor David B. Usher

David B. Usher 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).

  • Method and system for generating a combined retina/iris pattern biometric
    Patent number: 7248720
    Abstract: A method and system generates correlated biometric information by capturing an image of a retinal vessel pattern and simultaneously capturing an image of an iris minutia pattern. Retinal biometric data and iris biometric data are generated from the images. The retinal biometric data and the iris biometric data are then combined or linked to maintain the correlation between the two biometrics.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: July 24, 2007
    Assignee: Retica Systems, Inc.
    Inventors: David F. Muller, Gregory L. Heacock, David B. Usher