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

Patent Owner(s)

Patent Owner	Address
RYU HAIL-IL	527-88 GUAM-DONG YUSEONG-GU DAEJEON 305-800
HONG HOOK	527-88 GUAN-DONG YUSEONG-GU DAEJEON 305-800

International Classification(s)

• B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
• B27K:PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FO....
• C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ryu, Hai-il	Daejeon, KR	3	11

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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
November 23, 2010	US,7838578,B2   US7838578B2	GRANTED PATENT AS SECOND PUBLICATION
April 23, 2009	US,20090104458,A1   US20090104458A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7838578

Functional cornstalk board and preparation method thereof

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