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

Patent Owner(s)

Patent Owner	Address
DUKE UNIVERSITY	2812 ERWIN ROAD SUITE 406 DURHAM NC 27705

International Classification(s)

• C12Q:MEASURING OR TESTING PROCESSES INVOLVING ENZYMES O....
• G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
• C07K:PEPTIDES

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Allert, Malin J	Raleigh, US	10	28
Hellinga, Homme W	Durham, US	43	675

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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	Aug 20, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Aug 20, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 20, 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
February 20, 2024	US,11906524,B2   US11906524B2	GRANTED PATENT AS SECOND PUBLICATION
October 08, 2020	US,20200319194,A1   US20200319194A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11906524

Urea biosensors and uses thereof

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