List of gold ore and silver ore mining patents

Patents where

Current Assignee

Industry

Name	Description	Patent Applicant	Current Assignee	Patent Jurisdiction	Patent Number	Date of Patent
‌ 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 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 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 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 7314066 Air distributor for a bioleaching system	Patent 7314066 was granted and assigned to BHP on January, 2008 by the United States Patent and Trademark Office.		BHP	United States Patent and Trademark Office	7314066	January 1, 2008
‌ 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
‌ US Patent 8016912 Process for recovering platinum group metals using reductants	Patent 8016912 was granted and assigned to Barrick Gold Corporation on September, 2011 by the United States Patent and Trademark Office.		Barrick Gold Corporation	United States Patent and Trademark Office	8016912	September 13, 2011
‌ US Patent 10077487 Method for arsenic oxidation and removal from process and waste solutions	Patent 10077487 was granted and assigned to Barrick Gold Corporation on September, 2018 by the United States Patent and Trademark Office.	Barrick Gold Corporation	Barrick Gold Corporation	United States Patent and Trademark Office	10077487	September 18, 2018
‌ US Patent 8252254 Process for reduced alkali consumption in the recovery of silver	Patent 8252254 was granted and assigned to Barrick Gold Corporation on August, 2012 by the United States Patent and Trademark Office.		Barrick Gold Corporation	United States Patent and Trademark Office	8252254	August 28, 2012
‌ US Patent 9194023 Recovery of gold from roaster calcine leach tailings	Patent 9194023 was granted and assigned to Barrick Gold Corporation on November, 2015 by the United States Patent and Trademark Office.	Barrick Gold Corporation	Barrick Gold Corporation	United States Patent and Trademark Office	9194023	November 24, 2015
‌ US Patent 8061888 Autoclave with underflow dividers	Patent 8061888 was granted and assigned to Barrick Gold Corporation on November, 2011 by the United States Patent and Trademark Office.		Barrick Gold Corporation	United States Patent and Trademark Office	8061888	November 22, 2011
‌ US Patent 10597752 Method for pre-treatment of gold-bearing oxide ores	Patent 10597752 was granted and assigned to Barrick Gold Corporation on March, 2020 by the United States Patent and Trademark Office.	Barrick Gold Corporation	Barrick Gold Corporation	United States Patent and Trademark Office	10597752	March 24, 2020
‌ US Patent 9689056 Solvent extraction process	Patent 9689056 was granted and assigned to BHP on June, 2017 by the United States Patent and Trademark Office.		BHP	United States Patent and Trademark Office	9689056	June 27, 2017
‌ US Patent 7666373 Alumina recovery using aluminum containing layered double hydroxide	Patent 7666373 was granted and assigned to BHP on February, 2010 by the United States Patent and Trademark Office.		BHP	United States Patent and Trademark Office	7666373	February 23, 2010
‌ US Patent 10947606 Heap leaching method	Patent 10947606 was granted and assigned to BHP on March, 2021 by the United States Patent and Trademark Office.	BHP	BHP	United States Patent and Trademark Office	10947606	March 16, 2021
‌ US Patent 10258996 Separation of copper minerals from pyrite using air-metabisulfite treatment	Patent 10258996 was granted and assigned to Barrick Gold Corporation on April, 2019 by the United States Patent and Trademark Office.	Barrick Gold Corporation	Barrick Gold Corporation	United States Patent and Trademark Office	10258996	April 16, 2019
‌ US Patent 8900535 Production of zinc sulphate concentrates from a dilute zinc sulphate solution	Patent 8900535 was granted and assigned to Barrick Gold Corporation on December, 2014 by the United States Patent and Trademark Office.		Barrick Gold Corporation	United States Patent and Trademark Office	8900535	December 2, 2014
‌ US Patent 7313495 Method of processing marine magnetic gradient data and exploration methods using that data	Patent 7313495 was granted and assigned to BHP on December, 2007 by the United States Patent and Trademark Office.		BHP	United States Patent and Trademark Office	7313495	December 25, 2007
‌ US Patent 7156974 Method of manufacturing titanium and titanium alloy products	Patent 7156974 was granted and assigned to BHP on January, 2007 by the United States Patent and Trademark Office.		BHP	United States Patent and Trademark Office	7156974	January 2, 2007
‌ US Patent 7326390 Production of titania	Patent 7326390 was granted and assigned to BHP on February, 2008 by the United States Patent and Trademark Office.		BHP	United States Patent and Trademark Office	7326390	February 5, 2008
‌ US Patent 7232554 Process for recovering arsenic from acidic aqueous solution	Patent 7232554 was granted and assigned to Barrick Gold Corporation on June, 2007 by the United States Patent and Trademark Office.		Barrick Gold Corporation	United States Patent and Trademark Office	7232554	June 19, 2007

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