Patents by Inventor John William Fronabarger

John William Fronabarger 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 for azidoaminotriazole, nitrosoguanazine, and related compounds
    Patent number: 7375221
    Abstract: The present invention includes a method of making of azidoaminotriazole (5-azido-2H-[1,2,4]triazol-3-ylamine), nitrosoguanazine dimer (N3-[(1E)-3-(4,5-diamino-4H-1,2,4-triazol-3-yl)-1,2-dioxidotriaz-1-enyl]-4H-1,2,4-triazole-3,4,5-triamine), novel nitrosoguanazine salts, azidonitraminotriazole/salts and the making of azidonitraminotriazole and salts, and novel metal complexes of an azidonitramine (4,6-diazido-N-nitro-1,3,5-triazin-2-amine) and the making of these metal complexes of this azidonitramine. Azidoaminotriazole, nitrosoguanazine, and azidonitramine compounds, their intermediates, and their salts may generally relate to energetic compounds, while nitrosoguanazine compounds and their metal salts may also have commercial potential in biomedical and pharmaceutical applications.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: May 20, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John William Fronabarger, Michael E. Sitzmann, Michael D. Williams
  • Nitrobenzodifuroxan compounds, including their salts, and methods thereof
    Patent number: 7271267
    Abstract: A nitrobenzodifuroxan compound having the chemical structure of: wherein two of the R1, R2, R3 and R4 comprise oxygen or are absent, and only one of R1 or R2 is present, and only one of R3 and R4 is present, and wherein x is hydrolyzed or hydrolyzable. The salt of the hydroxynitrobenzodifuroxan of this compound is useful in explosive compositions.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: September 18, 2007
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: John William Fronabarger, Michael E. Sitzmann
  • Nitrobenzodifuroxan compounds, including their salts, and methods thereof
    Patent number: 7145016
    Abstract: A nitrobenzodifuroxan compound having the chemical structure of: wherein two of the R1, R2, R3 and R4 comprise oxygen or are absent, and only one of R1 or R2 is present, and only one of R3 and R4 is present, and wherein x is hydrolyzed or hydrolyzable. The salt of the hydroxynitrobenzodifuroxan of this compound is useful in explosive compositions.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: December 5, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John William Fronabarger, Michael E. Sitzmann