TREA

Horst E. Hirsch

Follow

Person

  • Trail, CA
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Precipitation of chloride from zinc sulphate solution
    • Patent number 4,263,109
    • Issue date Apr 21, 1981
    • Cominco Ltd.
    • Godefridus M. Swinkels
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Cadmium mercury telluride sputtering targets
    • Patent number 4,231,981
    • Issue date Nov 4, 1980
    • Cominco Ltd.
    • Horst E. Hirsch
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Leaching of metal sulphides
    • Patent number 4,192,851
    • Issue date Mar 11, 1980
    • Sherritt Gordon Mines Limited
    • Horst E. Hirsch
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Process for concentrating and recovering gallium
    • Patent number 4,071,422
    • Issue date Jan 31, 1978
    • Cominco Ltd.
    • Thomas L. Charlton
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Electrowinning of gallium
    • Patent number 3,966,568
    • Issue date Jun 29, 1976
    • Cominco Ltd.
    • Cecil L. Crossley
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR