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

Patent Owner(s)

Patent Owner	Address
HENKEL KGAA	DUSSELDORF

International Classification(s)

• B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
• B01D:SEPARATION

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ahmed, Bashir M	Rochester , US	26	249
# of filed Patents : 26 Total Citations : 249
Fristad, William E	Rochester Hills , US	34	250
# of filed Patents : 34 Total Citations : 250
Kozak, William G	Waterford , US	27	332
# of filed Patents : 27 Total Citations : 332

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Patent Citation Ranking

• 1 Citation Count
• B01J Class

• 3.99 % this patent is cited more than
• 16 Age

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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 Application No: 2009/0236,288

METHOD FOR SEPARATING MULTIVALENT METAL IONS

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Abstract

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A method and apparatus are described for removing iron cations and/or zinc cations from an autodeposition coating bath by passing a limited number of bed volumes through a column containing a gel type SAC IEX resin when iron cations are to be removed and passing a substantially larger number of bed volumes through the column when zinc cations are to be removed. To prevent clogging when zinc cations are being removed the direction of the flow through the column is periodically reversed.

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Description

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Claims

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