Patent Assignment
Reel/Frame 073312/0902
Change of Name
Recorded: 2025-12-24
Pages: 5
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Assignor
BARRICK GOLD CORPORATION
Executed: 2025-05-06
Assignee
BARRICK MINING CORPORATION
161 BAY STREET, SUITE 3700, TORONTO, M5J 2S1, CANADA
Covered Properties
(24)
Thiosulfate Generation in Situ in Precious Metal Recovery
Process for Reduced Alkali Consumption in the Recovery of Silver
Selective Precipitation of Metal Sulfides
Process for Mercury Control During Pressure Oxidation
Process for Recovering Gold and Silver from Refractory Ores
Method to Improve Recovery of Gold from Double Refractory Gold Ores
Process for Controlling Acid in Sulfide Pressure Oxidation Processes
Separation of Copper Minerals from Pyrite Using Air-Metabisulfite Treatment
Production of Zinc Sulphate Concentrates from a Dilute Zinc Sulphate Solution
Alkaline and Acid Pressure Oxidation of Precious Metal-Containing Materials
Co-Current and Counter Current Resin-in-Leach in Gold Leaching Processes
Method for Recovering Precious Metals and Copper from Leach Solutions
Co-Current and Counter Current Resin-in-Leach in Gold Leaching Processes
Recovery of Gold from Roaster Calcine Leach Tailings
Alkaline and Acid Pressure Oxidation of Precious Metal-Containing Materials
Method for Pre-Treatment of Gold-Bearing Oxide Ores
Method for Arsenic Oxidation and Removal from Process and Waste Solutions
Separation of Copper Minerals from Pyrite Using Air-Metabisulfite Treatment
Co-Current and Counter Current Resin-In-Leach in Gold Leaching Processes
Method for Pre-Treatment of Gold-Bearing Oxide Ores
Method for Carbon-Catalysed Thiosulfate Leaching of Gold-Bearing Materials
Method for Pre-Treatment of Gold-Bearing Oxide Ores
Method for Recovering Precious Metals from Thiosulfate Leach Solutions
Method for Carbon-Catalysed Thiosulfate Leaching of Gold-Bearing Materials
Related Assignments
(18)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 7, 2007
From: CHOI, YEONUK; KONDOS, PETER; AYLMORE, MARK GRAHAM; MCMULLEN, JACQUES
To: BARRICK GOLD CORPORATION
Reel/Frame 018973/0704 →
Assignment of Assignor's Interest
Aug 21, 2007
From: CHOI, YEONUK; KONDOS, PETER D.; MCMULLEN, JACQUES
To: BARRICK GOLD CORPORATION
Reel/Frame 019723/0019 →
Assignment of Assignor's Interest
Nov 12, 2007
From: CHOI, YEONUK; KONDOS, PETER; MCMULLEN, JACQUES
To: BARRICK GOLD CORPORATION
Reel/Frame 020096/0276 →
Assignment of Assignor's Interest
Oct 30, 2008
From: HILLIER, DANIEL; CHOI, YEONUK; AHERN, NOELENE
To: BARRICK GOLD CORPORATION
Reel/Frame 021765/0111 →
Assignment of Assignor's Interest
Oct 30, 2008
From: GORAIN, BARUN; KONDOS, PETER
To: BARRICK GOLD CORPORATION
Reel/Frame 021764/0997 →
Assignment of Assignor's Interest
Oct 30, 2008
From: HILLIER, DANIEL; GORAIN, BARUN; MCMULLEN, JACQUES
To: BARRICK GOLD CORPORATION
Reel/Frame 021765/0378 →
Assignment of Assignor's Interest
Oct 30, 2008
From: HILLIER, DANIEL; AHERN, NOELENE; CHOI, YEONUK
To: BARRICK GOLD CORPORATION
Reel/Frame 021765/0251 →
Assignment of Assignor's Interest
Jan 12, 2011
From: CHOI, YEONUK
To: BARRICK GOLD CORPORATION
Reel/Frame 025625/0916 →
Assignment of Assignor's Interest
Mar 16, 2011
From: GORAIN, BARUN
To: BARRICK GOLD CORPORATION
Reel/Frame 025968/0060 →
Assignment of Assignor's Interest
Feb 7, 2012
From: LANGHANS, JOHN WILLIAM, JR.; TSU, WILSON CHUNG-YEH
To: BARRICK GOLD CORPORATION
Reel/Frame 027666/0781 →
Assignment of Assignor's Interest
Mar 29, 2012
From: CHOI, YEONUK; CHEFAI, SAMIR
To: BARRICK GOLD CORPORATION
Reel/Frame 027957/0019 →
Assignment of Assignor's Interest
Oct 23, 2013
From: WANG, QIANKUN; STUBINA, NATHAN; DOUGLAS, WAYNE; ESPLIN, TODD
To: BARRICK GOLD CORPORATION
Reel/Frame 031464/0458 →
Assignment of Assignor's Interest
Dec 18, 2013
From: CHOI, YEONUK; WANG, QIANKUN; LANGHANS, JOHN WILLIAM, JR.
To: BARRICK GOLD CORPORATION
Reel/Frame 031812/0914 →
Assignment of Assignor's Interest
Aug 19, 2015
From: CHOI, YEONUK; CHEFAI, SAMIR
To: BARRICK GOLD CORPORATION
Reel/Frame 036365/0090 →
Assignment of Assignor's Interest
Oct 19, 2015
From: LANGHANS, JOHN WILLIAM, JR.; TSU, WILSON CHUNG-YEH
To: BARRICK GOLD CORPORATION
Reel/Frame 036823/0607 →
Assignment of Assignor's Interest
Nov 6, 2015
From: CHOI, YEONUK; GHARELAR, AHMAD G.; AHERN, NOELENE
To: BARRICK GOLD CORPORATION
Reel/Frame 036978/0613 →
Assignment of Assignor's Interest
Nov 9, 2015
From: CHOI, YEONUK; GHAHREMANINEZHAD, AHMAD
To: BARRICK GOLD CORPORATION
Reel/Frame 036989/0471 →
Assignment of Assignor's Interest
Nov 30, 2015
From: GHARELAR, AHMAD GHAHREMANINEZHAD
To: BARRICK GOLD CORPORATION
Reel/Frame 037166/0297 →