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

Patent Owner(s)

Patent Owner	Address
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED	P O BOX 38 LOW MOOR BRADFORD WEST YORKSHIRE BD12 OJZ

International Classification(s)

• C01B:NON-METALLIC ELEMENTS; COMPOUNDS THEREOF

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Simmons, Walter J	Martinsburg , US	19	299
Simmons, Walter N	Durham , US	6	51

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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
March 17, 2009	US,7504084,B2   US7504084B2	GRANTED PATENT AS SECOND PUBLICATION
June 15, 2006	US,20060124265,A1   US20060124265A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7504084

High velocity, low pressure process for making silica gels and microgels

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