Patents by Inventor Christopher J. Bulian

Christopher J. Bulian 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).

  • Preparation of tungsten oxide
    Patent number: 7591984
    Abstract: Tungsten trioxide hydrate (WO3.H2O) was prepared from a precursor solution of ammonium paratungstate in concentrated aqueous hydrochloric acid. The precursor solution was rapidly added to water, resulting in the crash precipitation of a yellow white powder identified as WO3.H2O nanosized platelets by x-ray diffraction and scanning electron microscopy. Annealing of the powder at 200° C. provided cubic phase WO3 nanopowder, and at 400° C. provided WO3 nanopowder as a mixture of monoclinic and orthorhombic phases.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: September 22, 2009
    Assignee: Los Alamos National Security, LLC
    Inventors: Christopher J. Bulian, Robert C. Dye, Steven F. Son, Betty S. Jorgensen, W. Lee Perry