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

Patent Owner(s)

Patent Owner	Address
SUMITOMO CHEMICAL COMPANY LIMITED	TOKYO 103-6020
TOKYO INSTITUTE OF TECHNOLOGY	2-12-1 OOKAYAMA MEGURO-KU TOKYO 1528550 ?1528550

International Classification(s)

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

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ihata, Osamu	Ichihara, JP	6	4
Johoji, Hirofumi	Ichihara, JP	15	124
Osakada, Kohtaro	Yokohama, JP	16	56
Takeuchi, Daisuke	Yokohama, JP	53	241

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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 30, 2013	US,8431663,B2   US8431663B2	GRANTED PATENT AS SECOND PUBLICATION
October 06, 2011	US,20110245441,A1   US20110245441A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8431663

Polymer and method for producing same

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