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

Patent Owner(s)

Patent Owner	Address
SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY	710021 SHAANXI PROVINCE XI'AN WEIYANG UNIVERSITY CAMPUS OF SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY XI'AN CITY SHAANXI PROVINCE 710021

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• C07D:HETEROCYCLIC COMPOUNDS

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chen, Xuefeng	Xi'an, CN	100	173
Jia, Minyi	Xi'an, CN	10	1
Li, Juan	Xi'an, CN	166	904
Liang, Chengyuan	Xi'an, CN	62	13
Tian, Danni	Xi'an, CN	11	1
Tong, Guang	Xi'an, CN	1	0
Wang, Xuechuan	Xi'an, CN	15	7

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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	Mar 5, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 5, 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

Full Text

US Patent No: 9751896

Asymmetric 7-N isatin dimer Schiff base compounds with antitumor activities and a method of preparing the same

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