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

Patent Owner(s)

Patent Owner	Address
FREEPORT MINERALS CORPORATION	333 NORTH CENTRAL AVENUE PHOENIX AS 85004

International Classification(s)

• C25C:PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVER....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gilbert, Stanley R	Thatcher, US	10	111
Marsden, John O	Phoenix, US	38	389
Robinson, Timothy G	Scottsdale, US	32	449
Sandoval, Scot P	Morenci , US	27	205
Stevens, Antonioni C	Thatcher, US	9	86

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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
February 24, 2009	US,7494580,B2   US7494580B2	GRANTED PATENT AS SECOND PUBLICATION
December 08, 2005	US,20050269209,A1   US20050269209A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7494580

System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction

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