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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
BARRICK GOLD CORPORATION	161 BAY STREET SUITE 3700 TORONTO M5J 2S1

International Classification(s)

• C22B:PRODUCTION OR REFINING OF METALS
• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chefai, Samir	Milton, CA	3	15
Choi, Yeonuk	Oakville, CA	18	80

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Apr 17, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Apr 17, 2029

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 17, 2017	US,9790572,B2   US9790572B2	GRANTED PATENT AS SECOND PUBLICATION
February 06, 2014	US,20140035207,A1   US20140035207A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9790572

Co-current and counter current resin-in-leach in gold leaching processes

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