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

Patent Owner(s)

Patent Owner	Address
NANKAI UNIVERSITY	300071 TIANJIN CITY NANKAI DISTRICT WEI JIN ROAD NO 94 MUNICIPAL DISTRICT TIANJIN CITY 300071

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• C07K:PEPTIDES

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Liu, Qiuhua	Tianjin, CN	18	197
Sun, Huailin	Tianjin, CN	1	0
Yu, Lei	Tianjin, CN	285	2406
Zhang, Jian	Tianjin, CN	1504	17611
Zhao, Jiangyu	Tianjin, CN	2	1

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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	Feb 26, 2026

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
August 26, 2014	US,8815913,B2   US8815913B2	GRANTED PATENT AS SECOND PUBLICATION
October 22, 2009	US,20090264619,A1   US20090264619A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8815913

Metal-catalyzed copolymerization of imines and carbon monoxide as a route to synthesize polypeptides

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