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

Patent Owner(s)

Patent Owner	Address
CJ CHEILJEDANG CORPORATION	SMARTPLEX BUILDING 292 SSANGNIM-DONG JUNG-GU SEOUL 100-400

International Classification(s)

• C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
• C07D:HETEROCYCLIC COMPOUNDS
• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
JEON, Jinwoo	Seoul, KR	15	6
KIM, Jieun	Seoul, KR	139	1897
LEE, Joo Young	Seoul, KR	129	544
SEO, Jang-Woo	Seoul, KR	1	0
YOU, Youngsu	Seoul, KR	1	0

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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	Feb 29, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	Feb 29, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Feb 29, 2036

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

Full Text

US Patent Application No: 2024/0287,011

METHOD FOR PRODUCING TETRAHYDROFURAN, GAMMA-BUTYROLACTONE, OR 1,4-BUTANEDIOL

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