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John Stiksma
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St. Albert, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Recovering metals from complex metal sulfides
Patent number
8,221,710
Issue date
Jul 17, 2012
Sherritt International Corporation
John Stiksma
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for separating and recovering base metals from used hydropr...
Patent number
7,846,404
Issue date
Dec 7, 2010
Chevron U.S.A. Inc.
Rahul S. Bhaduri
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for separating and recovering base metals from used hydropr...
Patent number
7,837,960
Issue date
Nov 23, 2010
Chevron U.S.A. Inc.
Rahul S. Bhaduri
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Selective precipitation of manganese from magnesium-containing solu...
Patent number
6,656,247
Issue date
Dec 2, 2003
Dynatec Corporation
Roman Michael Genik-Sas-Berezowsky
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for upgrading copper sulphide residues containing nickel an...
Patent number
5,993,514
Issue date
Nov 30, 1999
Dynatec Corporation
Manher Mohan Makwana
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Purification of elemental sulphur
Patent number
5,711,929
Issue date
Jan 27, 1998
698638 Alberta Ltd.
Michael E. Chalkley
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
RECOVERING METALS FROM COMPLEX METAL SULFIDES
Publication number
20100199807
Publication date
Aug 12, 2010
John Stiksma
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...