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

Patent Owner(s)

Patent Owner	Address
ANACOR PHARMACEUTICALS INC	NEW YORK NY 10017-5703

International Classification(s)

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

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chen, Minhua	Jiangsu, CN	84	96
Lu, Fei	Jiangsu, CN	145	842
Xia, Nan	Jiangsu, CN	18	89
Zhang, Xiaoyu	Jiangsu, CN	147	948
Zhang, Yanfeng	Jiangsu, CN	177	515

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Mar 20, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Mar 20, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 20, 2034

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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
September 20, 2022	US,11447506,B2   US11447506B2	GRANTED PATENT AS SECOND PUBLICATION
January 07, 2021	US,20210002307,A1   US20210002307A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11447506

Crystal forms of crisaborole in free form and preparation method and use thereof

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