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

Patent Owner(s)

• LANXESS DEUTSCHLAND GMBH

International Classification(s)

• C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Born, Ralf-Jurgen	Langenfeld, DE	6	7
Happ, Michael	Dormagen, DE	6	11
Klipper, Reinhold	Koln, DE	74	195
Schnegg, Ulrich	Leverkusen, DE	19	108
Soest, Hans-Karl	Koln, DE	12	26
Zarges, Wolfgang	Koln, DE	24	171

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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, 2004	US,6696503,B2   US6696503B2	GRANTED PATENT AS SECOND PUBLICATION
July 05, 2001	US,20010006159,A1   US20010006159A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 6696503

Process for preparing crosslinked ion exchangers based on unsaturated aliphatic nitriles

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