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

Patent Owner(s)

Patent Owner	Address
BAYER MATERIALSCIENCE AG	51368 LEVERKUSEN

International Classification(s)

• C07F:ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CO....
• C07B:GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS TH....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Richter, Frank	Leverkusen, DE	183	979

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 20, 2025

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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 20, 2014	US,8729304,B2   US8729304B2	GRANTED PATENT AS SECOND PUBLICATION
August 25, 2011	US,20110207927,A1   US20110207927A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8729304

1,4,2-diazaphospholidine derivatives

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