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

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International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS
• B01L:CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENE....
• C07B:GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS TH....
• B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Clarke, Alan Peter	Oslo, NO	8	13
Engell, Torgrim	Oslo, NO	34	88
Grigg, Julian	Amersham, GB	28	81
Jackson, Alexander	Amersham, GB	22	28
Khan, Imtiaz Ahmed	Amersham, GB	11	8
McRobbie, Graeme	Amersham, GB	14	6

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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 6, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	Aug 6, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 6, 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: 2025/0041,859

SOLID PHASE EXTRACTION

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