Patents by Inventor Jeffery S. Thompson

Jeffery S. Thompson 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).

  • Low temperature alkali metal electrolysis
    Publication number: 20040178080
    Abstract: A low temperature alkali metal electrolysis process is provided. The process comprises carrying out the electrolysis in the presence of a co-electrolyte and an alkali metal halide. The co-electrolyte comprises (1) a nitrogen-containing compound and optionally one ore more Group IB halides, Group IIIA halides, Group VIII halides; (2) a Group IIIA halide, a Group VB halide, or combinations of a Group IIIA halide and a Group VB halide; or (3) water. Also provided is a low temperature electrolysis process, which comprises carrying out the process using a cathode that comprises (1) a liquid alkali metal; (2) an alloy of two or more metals selected from the group consisting of bismuth, lead, tin, antimony, indium, gallium, thallium, and cadmium; or (3) an electrically conductive liquid solvated alkali metal.
    Type: Application
    Filed: March 26, 2004
    Publication date: September 16, 2004
    Inventors: Jeffery S. Thompson, Howard M. Blank, Walter John Simmons, Oswald Robert Bergmann
  • Low temperature alkali metal electrolysis
    Patent number: 6730210
    Abstract: A low temperature alkali metal electrolysis process is provided. The process comprises carrying out the electrolysis in the presence of a co-electrolyte and an alkali metal halide. The co-electrolyte comprises (1) a nitrogen-containing compound and optionally one ore more Group IB halides, Group IIIA halides, Group VIII halides; (2) a Group IIIA halide, a Group VB halide, or combinations of a Group IIIA halide and a Group VB halide; or (3) water. Also provided is a low temperature electrolysis process, which comprises carrying out the process using a cathode that comprises (1) a liquid alkali metal; (2) an alloy of two or more metals selected from the group consisting of bismuth, lead, tin, antimony, indium, gallium, thallium, and cadmium; or (3) an electrically conductive liquid solvated alkali metal.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: May 4, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jeffery S. Thompson, Howard M. Blank, Walter John Simmons, Oswald Robert Bergmann
  • Low temperature alkali metal electrolysis
    Publication number: 20020088719
    Abstract: A low temperature alkali metal electrolysis process is provided. The process comprises carrying out the electrolysis in the presence of a co-electrolyte and an alkali metal halide. The co-electrolyte comprises (1) a nitrogen-containing compound and optionally one ore more Group IB halides, Group IIIA halides, Group VIII halides; (2) a Group IIIA halide, a Group VB halide, or combinations of a Group IIIA halide and a Group VB halide; or (3) water. Also provided is a low temperature electrolysis process, which comprises carrying out the process using a cathode that comprises (1) a liquid alkali metal; (2) an alloy of two or more metals selected from the group consisting of bismuth, lead, tin, antimony, indium, gallium, thallium, and cadmium; or (3) an electrically conductive liquid solvated alkali metal.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 11, 2002
    Inventors: Jeffery S. Thompson, Howard M. Blank, Walter John Simmons, Oswald Robert Bergmann
  • Process for treating iron-containing sulfide rocks and ores
    Patent number: 6086847
    Abstract: A process for treating ores or rocks is provided. The process comprises (1) combining the ores or rocks with an acid passivating agent to produce a first combination; (2) contacting the first combination with an aqueous solution comprising (a) manganate ions or source thereof and (b) a base whereby a second combination is produced; and (3) maintaining the pH of the second combination at about 11 to about 13.5. The process can also comprise (1) contacting the ores or rocks with the aqueous solution to produce a third combination; (2) contacting the third combination with an acid passivating agent to produce a fourth combination; and (3) maintaining the pH of the fourth combination at about 11 to about 13.5. The process can be used to prevent acid rock drainage of metal-bearing rocks or to produce a pretreated ore or rock which can further be contacted with a lixiviating agent such as, for example, sodium cyanide to extract metals such as, for example, gold and silver from the pretreated ore or rock.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: July 11, 2000
    Assignees: University of Nevada, Reno Foundation on behalf of the University of Nevada
    Inventor: Jeffery S. Thompson
  • Enhancement of gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds
    Patent number: 5484470
    Abstract: An improved process for dissolving gold metal in ligand and oxidant lixiviation systems, wherein the solubility of gold is enhanced by the addition of heterocyclic aromatic compounds containing nitrogen or sulfur in the ring.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: January 16, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Sigridur S. Kristjansdottir, Jeffery S. Thompson
  • Metal-isonitrile adducts for preparing radionuclide complexes
    Patent number: 5324824
    Abstract: A method for preparing a coordination complex of an isonitrile ligand and a radioisotope of Tc, Ru, Co, Pt, Re, Os, Ir, W, Re, Cr, Mo, Mn, Ni, Rh, Nb and Ta from a non-radioactive metal adduct of the isonitrite.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: June 28, 1994
    Assignee: The DuPont Merck Pharmaceutical Co.
    Inventors: Alan B. Carpenter, Jr., Leo J. Maheu, Michael A. Patz, Thomas H. Tulip, Karen E. Linder, Vinayakam Subramanyam, Jeffery S. Thompson
  • Metal-isonitrile adducts for preparing radionuclide complexes
    Patent number: 4894445
    Abstract: A method for preparing a coordination complex of an isonitrile ligand and a radioisotope of Tc, Ru, Co, Pt, Re, Os, Ir, W, Re, Cr, Mo, Mn, Ni, Rh, Nb and Ta from a non-radioactive metal adduct of the isonitrile.
    Type: Grant
    Filed: June 25, 1986
    Date of Patent: January 16, 1990
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Alan P. Carpenter, Jr., Leo J. Maheu, Michael A. Patz, Thomas H. Tulip, Karen E. Linder, Vinayakam Subramanyam, Jeffery S. Thompson