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

Patent Owner(s)

Patent Owner	Address
SIEGFRIED LTD	4800 ZOFINGEN

International Classification(s)

• C07F:ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CO....
• C07D:HETEROCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Dinkel, Thomas	Strengelbach , CH	3	6
Heller, Sabrina	Oftringen , CH	3	6
Lauterbach, Erik Heinz	Suhr , CH	3	6

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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
November 17, 2009	US,7619088,B2   US7619088B2	GRANTED PATENT AS SECOND PUBLICATION
May 28, 2009	US,20090137809,A1   US20090137809A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7619088

Demethylation of 14-hydroxy substituted alkaloid derivatives

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