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

Patent Owner(s)

Patent Owner	Address
THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL	109 CHURCH STREET CHAPEL HILL NC 27516

International Classification(s)

• C07H:SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTI....
• C12P:FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESI....
• C12N:MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF
• C08B:POLYSACCHARIDES; DERIVATIVES THEREOF

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Li, Jine	Chapel Hill, US	3	8
Liu, Jian	Chapel Hill, US	667	5710
Su, Guowei	Durham, US	9	8

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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	Nov 28, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Nov 28, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 28, 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
May 28, 2024	US,11993627,B2   US11993627B2	GRANTED PATENT AS SECOND PUBLICATION
October 28, 2021	US,20210332076,A1   US20210332076A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11993627

Enzymatic synthesis of homogeneous chondroitin sulfate oligosaccharides

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