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List of copper extraction patents

Patents where

Current Assignee

Industry

Name	Description	Patent Applicant	Current Assignee	Patent Jurisdiction	Patent Number	Date of Patent
‌ US Patent 7273510 Arrangement and method for tapping a molten phase from a smelting furnace	Patent 7273510 was granted and assigned to Outokumpu on September, 2007 by the United States Patent and Trademark Office.		Outokumpu	United States Patent and Trademark Office	7273510	September 25, 2007
‌ US Patent 7514050 Processing of acid-consuming mineral materials involving treatment with acidic biooxidation effluent	Patent 7514050 was granted and assigned to Newmont (company) on April, 2009 by the United States Patent and Trademark Office.		Newmont (company)	United States Patent and Trademark Office	7514050	April 7, 2009
‌ US Patent 11370677 Rapid reduction of aqueous selenate with chromous ions	Patent 11370677 was granted and assigned to Seabridge Gold on June, 2022 by the United States Patent and Trademark Office.	Seabridge Gold	Seabridge Gold	United States Patent and Trademark Office	11370677	June 28, 2022
‌ US Patent 11639540 Method for carbon-catalysed thiosulfate leaching of gold-bearing materials	Patent 11639540 was granted and assigned to Barrick Gold Corporation on May, 2023 by the United States Patent and Trademark Office.	Barrick Gold Corporation	Barrick Gold Corporation	United States Patent and Trademark Office	11639540	May 2, 2023
‌ US Patent 7122109 Method for the improvements of current efficiency in electrolysis	Patent 7122109 was granted and assigned to Outokumpu on October, 2006 by the United States Patent and Trademark Office.		Outokumpu	United States Patent and Trademark Office	7122109	October 17, 2006
‌ US Patent 6997248 High pressure high temperature charge air cooler	Patent 6997248 was granted and assigned to Outokumpu on February, 2006 by the United States Patent and Trademark Office.		Outokumpu	United States Patent and Trademark Office	6997248	February 14, 2006
‌ US Patent 10006104 Production of low carbon chromium iron alloys from chromite concentrates	Patent 10006104 was granted and assigned to Kwg Resources Inc. on June, 2018 by the United States Patent and Trademark Office.		Kwg Resources Inc.	United States Patent and Trademark Office	10006104	June 26, 2018
‌ US Patent 7225863 Plate-type heat exchanger with anodic corrosion protection	Patent 7225863 was granted and assigned to Outokumpu on June, 2007 by the United States Patent and Trademark Office.		Outokumpu	United States Patent and Trademark Office	7225863	June 5, 2007
‌ US Patent 7285256 Precious metal recovery using thiocyanate lixiviant	Patent 7285256 was granted and assigned to Newmont (company) on October, 2007 by the United States Patent and Trademark Office.		Newmont (company)	United States Patent and Trademark Office	7285256	October 23, 2007
‌ US Patent 11384405 Ferritic stainless steel	Patent 11384405 was granted and assigned to Outokumpu on July, 2022 by the United States Patent and Trademark Office.	Outokumpu	Outokumpu	United States Patent and Trademark Office	11384405	July 12, 2022
‌ US Patent 7179374 Device for shear-thinning of solids containing material	Patent 7179374 was granted and assigned to Outokumpu on February, 2007 by the United States Patent and Trademark Office.		Outokumpu	United States Patent and Trademark Office	7179374	February 20, 2007
‌ US Patent 11566309 Duplex ferritic austenitic stainless steel		Outokumpu	Outokumpu	United States Patent and Trademark Office	11566309	January 31, 2023
‌ US Patent 9051625 Method for recovering precious metals and copper from leach solutions	Patent 9051625 was granted and assigned to Barrick Gold Corporation on June, 2015 by the United States Patent and Trademark Office.		Barrick Gold Corporation	United States Patent and Trademark Office	9051625	June 9, 2015
‌ US Patent 11555231 Duplex stainless steel	Patent 11555231 was granted and assigned to Outokumpu on January, 2023 by the United States Patent and Trademark Office.		Outokumpu	United States Patent and Trademark Office	11555231	January 17, 2023
‌ US Patent 11548087 Resistance welding of unweldable metals with thermal sprayed interlayers	Patent 11548087 was granted and assigned to Outokumpu on January, 2023 by the United States Patent and Trademark Office.	Outokumpu	Outokumpu	United States Patent and Trademark Office	11548087	January 10, 2023
‌ US Patent 10161016 Method for pre-treatment of gold-bearing oxide ores	Patent 10161016 was granted and assigned to Barrick Gold Corporation on December, 2018 by the United States Patent and Trademark Office.	Barrick Gold Corporation	Barrick Gold Corporation	United States Patent and Trademark Office	10161016	December 25, 2018
‌ US Patent 11401580 Method for pre-treatment of gold-bearing oxide ores	Patent 11401580 was granted and assigned to Barrick Gold Corporation on August, 2022 by the United States Patent and Trademark Office.	Barrick Gold Corporation	Barrick Gold Corporation	United States Patent and Trademark Office	11401580	August 2, 2022
‌ US Patent 11524351 Multistage joining process with thermal sprayed layers	Patent 11524351 was granted and assigned to Outokumpu on December, 2022 by the United States Patent and Trademark Office.	Outokumpu	Outokumpu	United States Patent and Trademark Office	11524351	December 13, 2022
‌ US Patent 8623115 Alkaline and acid pressure oxidation of precious metal-containing materials	Patent 8623115 was granted and assigned to Barrick Gold Corporation on January, 2014 by the United States Patent and Trademark Office.		Barrick Gold Corporation	United States Patent and Trademark Office	8623115	January 7, 2014
‌ US Patent 7572317 Thiosulfate generation in situ in precious metal recovery	Patent 7572317 was granted and assigned to Barrick Gold Corporation on August, 2009 by the United States Patent and Trademark Office.		Barrick Gold Corporation	United States Patent and Trademark Office	7572317	August 11, 2009
‌ US Patent 7537640 Precious metal recovery using thiocyanate lixiviant	Patent 7537640 was granted and assigned to Newmont (company) on May, 2009 by the United States Patent and Trademark Office.		Newmont (company)	United States Patent and Trademark Office	7537640	May 26, 2009
‌ US Patent 7197952 Testing method for ball mills	Patent 7197952 was granted and assigned to Outokumpu on April, 2007 by the United States Patent and Trademark Office.		Outokumpu	United States Patent and Trademark Office	7197952	April 3, 2007
‌ US Patent 10415116 Co-current and counter current resin-in-leach in gold leaching processes	Patent 10415116 was granted and assigned to Barrick Gold Corporation on September, 2019 by the United States Patent and Trademark Office.	Barrick Gold Corporation	Barrick Gold Corporation	United States Patent and Trademark Office	10415116	September 17, 2019
‌ US Patent 8715389 Co-current and counter current resin-in-leach in gold leaching processes	Patent 8715389 was granted and assigned to Barrick Gold Corporation on May, 2014 by the United States Patent and Trademark Office.		Barrick Gold Corporation	United States Patent and Trademark Office	8715389	May 6, 2014
‌ US Patent 9790572 Co-current and counter current resin-in-leach in gold leaching processes	Patent 9790572 was granted and assigned to Barrick Gold Corporation on October, 2017 by the United States Patent and Trademark Office.	Barrick Gold Corporation	Barrick Gold Corporation	United States Patent and Trademark Office	9790572	October 17, 2017

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