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

Patent Owner(s)

Patent Owner	Address
VONTRON TECHNOLOGY CO LTD	OFFICE BUILDING 550018 GUIZHOU CITY OF GUIYANG PROVINCE MAGICSTOR TECHNOLOGY INDUSTRIAL PARK HIGH TECH ZONE TWO FLOOR NO 206 GUIYANG CITY GUIZHOU PROVINCE 550018

International Classification(s)

• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Fang, Jun	Guiyang, CN	162	1026
Hu, Lijie	Guiyang, CN	29	40
Jin, Yan	Guiyang, CN	63	269
Liang, Songmiao	Guiyang, CN	4	0
Liang, Yonghong	Guiyang, CN	7	22
Wu, Zongce	Guiyang, CN	2	3
Yang, Xingsheng	Guiyang, CN	2	0
Zhao, Lianrui	Guiyang, CN	1	0

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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 19, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	Mar 19, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 19, 2036

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

Full Text

US Patent Application No: 2024/0307,829

COMPOSITE REVERSE OSMOSIS MEMBRANE AND PREPARATION METHOD THEREFOR

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