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

Patent Owner(s)

Patent Owner	Address
EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY	200237 NO 130 MEILONG ROAD SHANGHAI XUHUI DISTRICT SHANGHAI CITY SHANGHAI CITY 200237

International Classification(s)

• C01B:NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
• B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
• C02F:TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE....
• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Qian, Xiuzhen	Shanghai, CN	9	12
Shao, Zhen	Shanghai, CN	3	8
Xia, Yang	Shanghai, CN	88	329
Xu, Yunlong	Shanghai, CN	13	21
Zhao, Chongjun	Shanghai, CN	10	13

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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	May 21, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	May 21, 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
November 21, 2017	US,9821296,B2   US9821296B2	GRANTED PATENT AS SECOND PUBLICATION
June 18, 2015	US,20150165420,A1   US20150165420A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9821296

Photocatalytic compositions and methods for their preparation and use

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