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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)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• C07D:HETEROCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kowalczyk, James J	Andover, US	10	108
Kuznetsov, Galina	Lexington, US	9	101
Schiller, Shawn	Haverhill, US	28	273
Seletsky, Boris M	Andover, US	19	448
Spyvee, Mark	Hampstead, US	48	677
Yang, Hu	Andover, US	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 06, 2012	US,8129407,B2   US8129407B2	GRANTED PATENT AS SECOND PUBLICATION
March 11, 2010	US,20100063095,A1   US20100063095A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8129407

Hemiasterlin derivatives and uses thereof in the treatment of cancer

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