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Jinxing Ji
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Burnaby, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Method for reducing arsenic content in arsenic-bearing gold material
Patent number
11,155,894
Issue date
Oct 26, 2021
Eldorado Gold Corporation
Roman Berezowsky
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for thiosulfate leaching of precious metal-containing materials
Patent number
8,821,613
Issue date
Sep 2, 2014
Placer Dome Technical Services Ltd.
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for thiosulfate leaching of precious metal-containing materials
Patent number
8,597,399
Issue date
Dec 3, 2013
Placer Dome Technical Services Limited
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for thiosulfate leaching of precious metal-containing materials
Patent number
8,097,227
Issue date
Jan 17, 2012
Placer Dome Technical Services Limited
Ralph Peter Hackl
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Autoclave with underflow dividers
Patent number
8,061,888
Issue date
Nov 22, 2011
Barrick Gold Corporation
Jinxing Ji
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Reduction of lime consumption when treating refractory gold ores or...
Patent number
8,029,751
Issue date
Oct 4, 2011
Placer Dome Technical Services Limited
James A. King
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for thiosulfate leaching of precious metal-containing materials
Patent number
7,722,840
Issue date
May 25, 2010
Placer Dome Technical Services Limited
Ralph Peter Hackl
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for thiosulfate leaching of precious metal-containing materials
Patent number
7,704,298
Issue date
Apr 27, 2010
Placer Dome Technical Services Limited
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Reduction of lime consumption when treating refractor gold ores or...
Patent number
7,604,783
Issue date
Oct 20, 2009
Placer Dome Technical Services Limited
James A. King
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for thiosulfate leaching of precious metal-containing materials
Patent number
7,559,974
Issue date
Jul 14, 2009
Placer Dome Technical Services Ltd.
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for thiosulfate leaching of precious metal-containing materials
Patent number
7,544,232
Issue date
Jun 9, 2009
Placer Dome Technical Services Ltd.
Ralph Peter Hackl
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for thiosulfate leaching of precious metal-containing materials
Patent number
7,066,983
Issue date
Jun 27, 2006
Placer Dome Technical Services Limited
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for thiosulfate leaching of precious metal-containing materials
Patent number
6,660,059
Issue date
Dec 9, 2003
Placer Dome Technical Services Limited
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Autoclave using agitator and sparge tube to provide high oxygen tra...
Patent number
6,368,381
Issue date
Apr 9, 2002
Placer Dome Technical Services, Ltd.
James A. King
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
HYDROMETALLURGICAL METHOD FOR SILVER RECOVERY
Publication number
20180265947
Publication date
Sep 20, 2018
Eldorado Gold Corporation
Roman BEREZOWSKY
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR REDUCING ARSENIC CONTENT IN ARSENIC-BEARING GOLD MATERIAL
Publication number
20180258510
Publication date
Sep 13, 2018
Eldorado Gold Corporation
Roman BEREZOWSKY
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR THIOSULFATE LEACHING OF PRECIOUS METAL-CONTAINING MATERIALS
Publication number
20140047954
Publication date
Feb 20, 2014
PLACER DOME TECHNICAL SERVICES LTD.
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR THIOSULFATE LEACHING OF PRECIOUS METAL-CONTAINING MATERIALS
Publication number
20110132147
Publication date
Jun 9, 2011
PLACER DOME TECHNICAL SERVICES LTD.
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR THIOSULFATE LEACHING OF PRECIOUS METAL-CONTAINING MATERIALS
Publication number
20100132509
Publication date
Jun 3, 2010
PLACER DOME TECHNICAL SERVICES LTD.
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR THIOSULFATE LEACHING OF PRECIOUS METAL-CONTAINING MATERIALS
Publication number
20100111751
Publication date
May 6, 2010
Placer Dome Technical Services Limited
Ralph Peter Hackl
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
REDUCTION OF LIME CONSUMPTION WHEN TREATING REFRACTORY GOLD ORES OR...
Publication number
20100024603
Publication date
Feb 4, 2010
PLACER DOME TECHNICAL SERVICES LTD.
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR THIOSULFATE LEACHING OF PRECIOUS METAL-CONTAINING MATERIALS
Publication number
20080105088
Publication date
May 8, 2008
Placer Dome Technical Services Limited
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
AUTOCLAVE WITH UNDERFLOW DIVIDERS
Publication number
20070217285
Publication date
Sep 20, 2007
BARRICK GOLD CORPORATION
Jinxing Ji
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR THIOSULFATE LEACHING OF PRECIOUS METAL-CONTAINING MATERIALS
Publication number
20070089566
Publication date
Apr 26, 2007
Placer Dome Technical Services Limited
Ralph Peter Hackl
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Reduction of lime consumption when treating refractory gold ores or...
Publication number
20060133974
Publication date
Jun 22, 2006
Placer Dome Technical Services Limited
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for thiosulfate leaching of precious metal-containing materials
Publication number
20040206207
Publication date
Oct 21, 2004
Placer Dome Technical Services Limited
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for thiosulfate leaching of precious metal-containing materials
Publication number
20040115108
Publication date
Jun 17, 2004
Ralph Peter Hackl
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for thiosulfate leaching of precious metal-containing materials
Publication number
20040035252
Publication date
Feb 26, 2004
Placer Dome Technical Services Limited
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for thiosulfate leaching of precious metal-containing materials
Publication number
20020092377
Publication date
Jul 18, 2002
Jinxing Ji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...