TREA

Roald E. Lindstrom

Follow

Person

  • Reno, NV, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Recovery of bismuth from chloride process solutions
    • Patent number 4,285,912
    • Issue date Aug 25, 1981
    • The United States of America as represented by the Secretary of the Interior
    • Charles M. Flynn
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Selective removal of mercury from cyanide solutions
    • Patent number 4,256,707
    • Issue date Mar 17, 1981
    • The United States of America as represented by the Secretary of the Interior
    • Charles M. Flynn
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Leaching agglomerated gold - silver ores
    • Patent number 4,256,706
    • Issue date Mar 17, 1981
    • The United States of America as represented by the Secretary of the Interior
    • Harold J. Heinen
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Leaching agglomerated gold - silver ores
    • Patent number 4,256,705
    • Issue date Mar 17, 1981
    • The United States of America as represented by the Secretary of the Interior
    • Harold J. Heinen
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Desorption of gold from activated carbon
    • Patent number 4,208,378
    • Issue date Jun 17, 1980
    • The United States of America as represented by the Secretary of the Interior
    • Harold J. Heinen
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Recovery of copper and nickel from alloys
    • Patent number 4,085,017
    • Issue date Apr 18, 1978
    • The United States of America as represented by the Secretary of the Interior
    • Thomas A. Henrie
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Separate recovery of silver and gold from cyanide solutions
    • Patent number 4,072,587
    • Issue date Feb 7, 1978
    • The United States of America as represented by the Secretary of the Interior
    • Harold J. Heinen
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Extraction of copper from sulfide ores
    • Patent number 4,062,744
    • Issue date Dec 13, 1977
    • The United States of America as represented by the Secretary of the Interior
    • Thomas A. Henrie
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Recovery of copper and silver from sulfide concentrates
    • Patent number 4,053,305
    • Issue date Oct 11, 1977
    • The United States of America as represented by the Secretary of the Interior
    • Gary A. Smyres
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Recovering copper values from oxidized ores
    • Patent number 3,985,855
    • Issue date Oct 12, 1976
    • The United States of America as represented by the Secretary of the Interior
    • Philip R. Haskett
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Decomposition leach of sulfide ores with chlorine and oxygen
    • Patent number 3,981,962
    • Issue date Sep 21, 1976
    • The United States of America as represented by the Secretary of the Interior
    • Gary A. Smyres
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Hydrometallurgical process for copper recovery from sulfide ores
    • Patent number 3,961,942
    • Issue date Jun 8, 1976
    • The United States of America as represented by the Secretary of the Interior
    • Philip R. Haskett
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...