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

Patent Owner(s)

Patent Owner	Address
PERMA-FIX ENVIRONMENTAL SERVICES INC	8302 DUNWOODY PLACE SUITE 250 ATLANTA GA 30350

International Classification(s)

• G21F:PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, C....
• C08B:POLYSACCHARIDES; DERIVATIVES THEREOF
• B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
• C01G:COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLAS....
• C01F:COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUM....
• C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
• C02F:TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hasan, Shameem	Manchester, US	5	59

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jun 16, 2026

Fee	Large entity fee	small entity fee	micro entity fee
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
December 16, 2014	US,8911695,B2   US8911695B2	GRANTED PATENT AS SECOND PUBLICATION
February 14, 2013	US,20130039822,A1   US20130039822A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2013/0039,822

PREPARATION OF CHITOSAN-BASED MICROPOROUS COMPOSITE MATERIAL AND ITS APPLICATIONS

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