Patents by Inventor Hans G. Brandstatter

Hans G. Brandstatter 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).

  • Recovery of titanium values
    Patent number: 4521385
    Abstract: Titanium and iron values are recovered from ores, concentrates and slags by effecting solid-state reduction and carburization to form titanium carbide and carburized iron, separation of the carburized iron, and low temperature chlorination of the titanium carbide to gaseous substantially pure titanium tetrachloride, which may be oxidized to pigmentary titanium dioxide.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: June 4, 1985
    Assignee: Ontario Research Foundation
    Inventor: Hans G. Brandstatter
  • Production of metal carbides in pure form
    Patent number: 4256496
    Abstract: Metals in oxide, carbonate and/or hydroxide form in ores or ore concentrates are converted to the corresponding carbide by a solid state reaction with carbon. The carbide then is separated in substantially pure form from the gangue constituents and may be converted to the metal.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: March 17, 1981
    Assignee: Ontario Research Foundation
    Inventor: Hans G. Brandstatter
  • Production of ferrochrome alloy
    Patent number: 4072510
    Abstract: Chromium or other metal carbides are recovered from chromates or equivalent soluble metal salts in substantially pure form by solid state carburization. The chromates may be derived from low grade ore to provide an overall non-smelting procedure which is non-polluting. The carbide may be formed into sponge metal.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: February 7, 1978
    Assignee: Ontario Research Foundation
    Inventors: Allan M. Smellie, Hans G. Brandstatter
  • Production of metal carbides
    Patent number: 4009247
    Abstract: Chromium or other metal carbides are recovered from chromates or equivalent soluble metal salts in substantially pure form by solid state carburization. The chromates may be derived from low grade ore to provide an overall non-smelting procedure which is non polluting. The carbide may be formed into sponge metal.
    Type: Grant
    Filed: January 7, 1975
    Date of Patent: February 22, 1977
    Assignee: Ontario Research Foundation
    Inventors: Allan M. Smellie, Hans G. Brandstatter
  • Production and recovery of metallic carbides from ores and concentrates
    Patent number: 3999981
    Abstract: Metal values present as oxides, hydroxides or carbonates in ores or processed concentrates thereof are converted to the corresponding carbide by a solid state reaction with carbon, the carbide then is separated in substantially pure form and may be used directly as ferroalloy or may be converted to the metal.
    Type: Grant
    Filed: April 22, 1975
    Date of Patent: December 28, 1976
    Assignee: Ontario Research Foundation
    Inventor: Hans G. Brandstatter