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

Patent Owner(s)

Patent Owner	Address
INVISTA NORTH AMERICA S A R L	THREE LITTLE FALLS CENTRE 2801 CENTERVILLE ROAD WILMINGTON DE 19808

International Classification(s)

• C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
• C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
• C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Alsop, Albert W	Wilimington, DE	25	187
Camp, Carl E	Wilimington, DE	5	103
Iwasyk, John M	Westgate Farms, DE	6	35
Rajagopalan, Dilip	Newtown Square, PA	2	9

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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
April 05, 2005	US,6875838,B2   US6875838B2	GRANTED PATENT AS SECOND PUBLICATION
October 28, 2004	US,20040214982,A1   US20040214982A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 6875838

Process for reducing caprolactam and its oligomers in nylon-6 pre-polymer

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