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

Patent Owner(s)

Patent Owner	Address
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC	AMES IA

International Classification(s)

• C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....
• C08C:TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
• C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
• C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kang, Dong Eun	Daejeon, KR	6	1
Kwag, Gwanghoon	Daejeon, KR	18	40
Lee, Hanbaek	Daejeon, KR	5	2
Sadow, Aaron David	Ames, US	9	8
Schmidt, Bradley M	Ames, US	3	1

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Apr 24, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Apr 24, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Apr 24, 2035

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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
October 24, 2023	US,11795243,B2   US11795243B2	GRANTED PATENT AS SECOND PUBLICATION
June 10, 2021	US,20210171672,A1   US20210171672A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11795243

End group functionalization agents for polydiene

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