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Garry Mervyn Johnston
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Wester Australia, AU
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Patents Grants
last 30 patents
Information
Patent Grant
Method for ammoniacal leaching of copper from oxidised copper ores
Patent number
10,590,512
Issue date
Mar 17, 2020
Metaleach Limited
Matthew Leslie Sutcliffe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of oxidative leaching of sulfide ores and/or concentrates
Patent number
9,771,631
Issue date
Sep 26, 2017
Metaleach Limited
Nicholas James Welham
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of oxidative leaching of molybdenum—rhenium sulfide ores and...
Patent number
9,057,119
Issue date
Jun 16, 2015
Metaleach Limited
Matthew Leslie Sutcliffe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for leaching of copper and molybdenum
Patent number
9,011,574
Issue date
Apr 21, 2015
Metaleach Limited
Nicholas James Welham
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for leaching zinc from a zinc ore
Patent number
8,871,001
Issue date
Oct 28, 2014
Metaleach Limited
Matthew Leslie Sutcliffe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for leaching cobalt from oxidised cobalt ores
Patent number
8,486,355
Issue date
Jul 16, 2013
Metaleach Limited
Matthew Leslie Sutcliffe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for ammoniacal leaching
Patent number
8,388,729
Issue date
Mar 5, 2013
Metaleach Limited
Nicholas J. Welham
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for extracting zinc from aqueous ammoniacal solutions
Patent number
8,323,596
Issue date
Dec 4, 2012
Metaleach Limited
Garry Mervyn Johnston
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR AMMONIACAL LEACHING OF COPPER FROM OXIDISED COPPER ORES
Publication number
20170191144
Publication date
Jul 6, 2017
METALEACH LIMITED
Matthew Leslie SUTCLIFFE
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR LEACHING OF COPPER AND MOLYBDENUM
Publication number
20130220078
Publication date
Aug 29, 2013
METALEACH LIMITED
Nicholas James Welham
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD OF OXIDATIVE LEACHING OF MOLYBDENUM-RHENIUM SULFIDE ORES AND...
Publication number
20130133485
Publication date
May 30, 2013
METALEACH LIMITED
Matthew Leslie Sutcliffe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR LEACHING ZINC FROM A ZINC ORE
Publication number
20130025412
Publication date
Jan 31, 2013
METALEACH LIMITED
Matthew Leslie Sutcliffe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR LEACHING COBALT FROM OXIDISED COBALT ORES
Publication number
20120244051
Publication date
Sep 27, 2012
METALEACH LIMITED
Matthew Leslie Sutcliffe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD OF OXIDATIVE LEACHING OF SULFIDE ORES AND/OR CONCENTRATES
Publication number
20120103138
Publication date
May 3, 2012
METALEACH LIMITED
Nicholas James Welham
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR EXTRACTING ZINC FROM AQUEOUS AMMONIACAL SOLUTIONS
Publication number
20110293493
Publication date
Dec 1, 2011
METALEACH LIMITED
Garry Mervyn Johnston
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR AMMONIACAL LEACHING
Publication number
20100180728
Publication date
Jul 22, 2010
METALEACH LIMITED
Nicholas J. Welham
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...