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

Patent Owner(s)

Patent Owner	Address
XENON PHARMACEUTICALS INC	BURNABY BC V5G 4W8

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
Chen, Huanming	Irvine, US	30	78
Cheney, Ian Wayne	Mission Viejo, US	7	42
De, La Rosa Martha Alicia	San Diego, US	21	105
Larson, Gary Lee	Cypress, US	2	30
Vernier, Jean-Michel	Laguna Niguel, US	82	846
Wu, Jim Zhen	Aliso Viejo, US	12	44

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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
October 23, 2012	US,8293911,B2   US8293911B2	GRANTED PATENT AS SECOND PUBLICATION
June 12, 2008	US,20080139610,A1   US20080139610A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2008/0139,610

Derivatives of 4-(n-azacycloalkyl) anilides as potassium channel modulators

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