Patents by Inventor Gene E. McClelland

Gene E. McClelland 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).

  • Electrolytic production of precious metals
    Patent number: 4554058
    Abstract: An electrolytic process for the desorption of precious metals such as gold nd silver. The precious metal complexes are loaded on activated carbon particles that are packed into a hollow, cylindrical graphite container and the container is connected as the anode of an electrolytic cell. The electrolyte is a suitable alkaline solution and the cathode can be graphite, antimony or copper. Upon the application of an electric current, the precious metal complexes are desorbed and reduced to precious metals on the cathode.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: November 19, 1985
    Assignee: The United States of America as represented by the Secretary of Interior
    Inventors: Kenneth P. V. Lei, Judith A. Eisele, Gene E. McClelland
  • Leaching agglomerated gold - silver ores
    Patent number: 4256706
    Abstract: Percolation leaching of gold or silver ores, tailings or wastes is accomplished by a process comprising initial agglomeration of fines in the feed by means of a binding agent and cyanide solution, followed by aging and, subsequently, leaching to recover gold or silver values.
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: March 17, 1981
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Harold J. Heinen, Gene E. McClelland, Roald E. Lindstrom
  • Leaching agglomerated gold - silver ores
    Patent number: 4256705
    Abstract: Percolation leaching of gold or silver ores, tailings or wastes is accomplished by a process comprising initial agglomeration of fines in the feed by means of a binding agent and water, followed by aging and, subsequently, leaching to recover gold or silver values.
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: March 17, 1981
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Harold J. Heinen, Gene E. McClelland, Roald E. Lindstrom