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

Patent Owner(s)

Patent Owner	Address
UOP LLC	ILLINOIS

International Classification(s)

• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Liu, Chunqing	Arlington Heights, US	173	1626
Osman, Zara	Glenview, US	30	182
Troxell, Angela N	Chicago, US	7	56

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Oct 12, 2027

Fee	Large entity fee	small entity fee	micro entity fee
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
April 12, 2016	US,9308503,B2   US9308503B2	GRANTED PATENT AS SECOND PUBLICATION
November 19, 2015	US,20150328596,A1   US20150328596A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9308503

Polybenzoxazole membranes from self-cross-linkable aromatic polyimide membranes

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