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

Patent Owner(s)

Patent Owner	Address
ZHEJIANG MEDICINE CO LTD XINCHANG PHARMACEUTICAL FACTORY	SHAOXING ZHEJIANG 312500

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
Cai, Jinna	Xinchang County, CN	7	0
Chen, Chunlin	Xinchang County, CN	14	13
Lin, Xiaoqin	Xinchang County, CN	2	8
Lv, Lili	Xinchang County, CN	1	0
Mao, Wei	Xinchang County, CN	101	482
Wang, Jun	Xinchang County, CN	2215	18848
Wu, Guofeng	Xinchang County, CN	14	3
Wu, Zhanggui	Xinchang County, CN	13	85
Xiao, Sen	Xinchang County, CN	1	0
Xu, Yongmei	Xinchang County, TW	16	80

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Patent Citation Ranking

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Feb 1, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Feb 1, 2029

Fee	Large entity fee	small entity fee	micro entity fee
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
August 01, 2017	US,9718823,B2   US9718823B2	GRANTED PATENT AS SECOND PUBLICATION
July 21, 2016	US,20160207924,A1   US20160207924A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9718823

2, 6-Di-nitrogen-containing substituted purine derivative, and preparation method, pharmaceutical composition and use thereof

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