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Jack S. Stafiej
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Ville St-Laurent, CA
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last 30 patents
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Patent Grant
Tellurium extraction from copper electrorefining slimes
Patent number
5,939,042
Issue date
Aug 17, 1999
Noranda, Inc.
Jack S. Stafiej
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Patent Grant
Selective bismuth and antimony removal from copper electrolyte
Patent number
5,573,739
Issue date
Nov 12, 1996
Noranda, Inc.
Viken P. Baboudjian
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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Patent Grant
Treatment of high nickel slimes
Patent number
5,108,721
Issue date
Apr 28, 1992
Noranda Inc.
Viken P. Baboudjian
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...