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

Patent Owner(s)

• COMPAGNIE FRANCAISE D'ENTREPRISES MINIERES, A CORP OF FRANCE;COMPAGNIE FRANCAISE D'ENTREPRISES MINIERES, METALLURGIQUES ET D'INVESTISSEMENTS;COMPAGNIE FRANCAISE D'ENTREPRISES MINIERES, METALLURGIQUES ET D'INVESTISSEMENTS, A CRP. OF FRANCE

International Classification(s)

• C23F:NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM S....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Duterque, Jean-Paul	Arvada, CO	2	6
Hodges, Donald R	Denver, CO	5	71
Queneau, Paul B	Golden, CO	23	171
Sherwood, William G	Golden, CO	6	73

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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

Full Text

US Patent No: 4627900

Electrochemical dissolution and control of nickel sulfide scale

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