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

Patent Owner(s)

Patent Owner	Address
EISAI CO LTD	6-10 KOISHIKAWA 4-CHOME BUNKYO-KU TOKYO

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kowalczyk, James J	Andover, MA	10	108
Kuznetsov, Galina	Lexington, MA	9	101
Schiller, Shawn	Haverhill, MA	28	273
Seletsky, Boris M	Andover, MA	19	448
Spyvee, Mark	Hampstead, NH	48	677
Yang, Hu	Andover, MA	82	646

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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
March 20, 2007	US,7192972,B2   US7192972B2	GRANTED PATENT AS SECOND PUBLICATION
October 27, 2005	US,20050239870,A1   US20050239870A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7192972

Hemiasterlin derivatives and uses thereof

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