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

Patent Owner(s)

Patent Owner	Address
VENTANA RESEARCH CORPORATION	16 N CAMINO MIRAMONTE TUCSON AS 85716

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• A01N:PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLA....
• C07D:HETEROCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Changtong, Chuchawin	Tucson, US	3	2
Connors, Robert E	Worcester, US	1	0
Lombardi, John L	Tucson, US	40	446

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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
May 21, 2013	US,8445683,B2   US8445683B2	GRANTED PATENT AS SECOND PUBLICATION
May 10, 2012	US,20120115901,A1   US20120115901A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8445683

Porphyrin compounds comprising one or more pyridone moieties

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