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

Patent Owner(s)

Patent Owner	Address
THE HONG KONG POLYTECHNIC UNIVERSITY	HONG KONG

International Classification(s)

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

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chan, Kin-Fai	Hong Kong, HK	5	8
Chan, Tak-Hang	Hong Kong, HK	28	66
Chen, Sheng	Hong Kong, HK	107	621
Chiou, Jia-Chi	Hong Kong, HK	1	0
Kan, Jason Wing-Yiu	Hong Kong, HK	1	0
Lui, Hok-Kiu	Hong Kong, HK	1	0
Wong, Kwok-Yin	Hong Kong, HK	7	8
Yap, Hong-Kin	Hong Kong, HK	1	0

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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	Jun 7, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jun 7, 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 Application No: 2017/0348,258

3-Amino Benzamide Derivative Serving As B-Lactam Auxiliary Antibiotic, Preparation Method and Use Thereof

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