Patents by Inventor Norman H. Hansen

Norman H. Hansen 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).

  • Apparatus and method for identification and recognition of an item with ultrasonic patterns from item subsurface micro-features
    Patent number: 5454045
    Abstract: The present invention is a means and method for identification and recognition of an item by ultrasonic imaging of material microfeatures and/or macrofeatures within the bulk volume of a material. The invention is based upon ultrasonic interrogation and imaging of material microfeatures within the body of material by accepting only reflected ultrasonic energy from a preselected plane or volume within the material. An initial interrogation produces an identification reference. Subsequent new scans are statistically compared to the identification reference for making a match/non-match decision.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: September 26, 1995
    Assignee: Battelle Memorial Institute
    Inventors: Richard W. Perkins, James L. Fuller, Steven R. Doctor, Morris S. Good, Patrick G. Heasler, James R. Skorpik, Norman H. Hansen