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

Patent Owner(s)

Patent Owner	Address
NEKTAR THERAPEUTICS	SAN FRANCISCO CA 94185

International Classification(s)

• C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
• C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Caliceti, Paolo	Padua, IT	16	2488
Harris, J Milton	Huntsville, US	114	13074
Schiavon, Oddone	Padua, IT	15	2512
Veronese, Francesco Maria	Padua, IT	17	2046

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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
January 15, 2013	US,8354477,B2   US8354477B2	GRANTED PATENT AS SECOND PUBLICATION
November 25, 2010	US,20100298496,A1   US20100298496A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8354477

Multi-armed, monofunctional, and hydrolytically stable derivatives of poly(ethylene glycol) and related polymers for modification of surfaces and molecules

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