Patents by Inventor Frederick S. Heim

Frederick S. Heim 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).

  • Bulk HME precursor detection kit
    Patent number: 8889421
    Abstract: The present invention relates generally to a kit and method for the colorimetric detection of precursors used in the assembly of homemade explosives (HMEs). More specifically, the present invention relates to a bulk HME precursor detection kit and methods of using a kit that is capable of bulk detection of HME precursors, such as urea nitrate, ammonium nitrate and potassium chlorate.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: November 18, 2014
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Wayne Ouellette, John H. Wilkinson, James N. Thomasson, III, Frederick S. Heim, Herbert Mitchell, Robert G. Best