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David L. Jones
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Delta, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Solvent extraction process for separating cobalt from nickel in aqu...
Patent number
8,979,976
Issue date
Mar 17, 2015
CESL Limited
David Llewellyn Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for gold and silver recovery from a sulphide concentrate
Patent number
8,025,859
Issue date
Sep 27, 2011
CESL Limited
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Pressure oxidation leaching in the presence of an acidic solution o...
Patent number
7,438,874
Issue date
Oct 21, 2008
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for the treatment of molybdenum concentrate
Patent number
7,169,371
Issue date
Jan 30, 2007
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for the treatment or removal of impurities in a hydrometall...
Patent number
6,755,891
Issue date
Jun 29, 2004
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for the recovery of zinc from a zinc sulphide ore or concen...
Patent number
6,471,849
Issue date
Oct 29, 2002
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for the extraction of copper from a sulphide copper ore or...
Patent number
6,455,019
Issue date
Sep 24, 2002
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for the recovery of nickel and/or cobalt from a concentrate
Patent number
6,383,460
Issue date
May 7, 2002
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Chloride assisted hydrometallurgical extraction of metal
Patent number
RE37251
Issue date
Jul 3, 2001
Cominco Engineering Services Ltd.
David L. Jones
205 - Electrolysis: processes, compositions used therein, and methods of prep...
Information
Patent Grant
Process for extraction of metal from an ore or concentrate containi...
Patent number
6,171,564
Issue date
Jan 9, 2001
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for the solvent extraction of nickel and cobalt values in t...
Patent number
6,054,105
Issue date
Apr 25, 2000
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Chloride assisted hydrometallurgical extraction of metal
Patent number
5,902,474
Issue date
May 11, 1999
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Chloride assisted hydrometallurgical extraction of metal
Patent number
5,874,055
Issue date
Feb 23, 1999
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Chloride assisted hydrometallurgical extraction of metal
Patent number
5,869,012
Issue date
Feb 9, 1999
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for the recovery of nickel and/or cobalt from an ore or con...
Patent number
5,855,858
Issue date
Jan 5, 1999
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Chloride assisted hydrometallurgical extraction of metal
Patent number
5,650,057
Issue date
Jul 22, 1997
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Chloride assisted hydrometallurgical copper extraction
Patent number
5,645,708
Issue date
Jul 8, 1997
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Chloride assisted hydrometallurgical copper extraction
Patent number
5,431,788
Issue date
Jul 11, 1995
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Hydrometallurgical copper extraction process
Patent number
5,316,567
Issue date
May 31, 1994
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Hydrometallurgical copper extraction process
Patent number
5,223,024
Issue date
Jun 29, 1993
Cominco Engineering Services Ltd.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
SOLVENT EXTRACTION PROCESS FOR SEPARATING COBALT FROM NICKEL IN AQU...
Publication number
20150152522
Publication date
Jun 4, 2015
CESL LIMITED
David Llewellyn Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SOLVENT EXTRACTION PROCESS FOR SEPARATING COBALT FROM NICKEL IN AQU...
Publication number
20110283838
Publication date
Nov 24, 2011
Commonwealth Scientific and Industrial Research Organisation (ABN 41 687 119...
David Llewellyn JONES
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Process for gold and silver recovery from a sulphide concentrate
Publication number
20080286180
Publication date
Nov 20, 2008
COMINCO ENGINEERING SERVICES LTD.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Chloride assisted hydrometallurgical extraction of metals
Publication number
20040047780
Publication date
Mar 11, 2004
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Process for the treatment or removal of impurities in a hydrometall...
Publication number
20030192404
Publication date
Oct 16, 2003
COMINCO ENGINEERING SERVICES LTD.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Process for the treatment of molybdenum concentrate
Publication number
20030124040
Publication date
Jul 3, 2003
COMINCO ENGINEERING SERVICES LTD.
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
PROCESS FOR THE RECOVERY OF NICKEL AND / OR COBALT FROM A CONCENTRATE
Publication number
20020012621
Publication date
Jan 31, 2002
DAVID L. JONES
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Chloride assisted hydrometallurgical extraction of metal
Publication number
20020004023
Publication date
Jan 10, 2002
David L. Jones
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...