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

Patent Owner(s)

Patent Owner	Address
TAIWAN TEXTILE RESEARCH INSTITUTE	NO 6 CHEN-TIAN RD TU-CHEN DIST NEW TAIPEI CITY

International Classification(s)

• C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
• C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
• C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chen, Chun-Hung	New Taipei, TW	246	1469
Chou, Shang-Chih	New Taipei, TW	16	3
Lee, Kueir-Rarn	New Taipei, TW	25	75
Lin, Chun-Hung	New Taipei, TW	314	2365

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Dec 9, 2027
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Dec 9, 2031

Fee	Large entity fee	small entity fee	micro entity fee
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
June 09, 2020	US,10675590,B2   US10675590B2	GRANTED PATENT AS SECOND PUBLICATION
October 12, 2017	US,20170291146,A1   US20170291146A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2017/0291,146

POLYIMIDE COMPOSITION AND PREPARATION METHOD OF SEPARATION MEMBRANE

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