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

Patent Owner(s)

Patent Owner	Address
SUMITOMO SEIKA CHEMICALS CO LTD	JAPAN HYOGO PREFECTURE

International Classification(s)

• A61F:FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES....
• B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Handa, Masayoshi	Himeji-shi, JP	31	219
Onoda, Yuichi	Himeji-shi, JP	19	68
Ueda, Koji	Himeji-shi, JP	174	1357

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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	Dec 20, 2024

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

Full Text

US Patent Application No: 2013/0158,495

WATER ABSORBENT RESIN AND METHOD FOR PRODUCING SAME

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