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

Patent Owner(s)

• AKZO NOBEL CHEMICALS INTERNATIONAL B.V.

International Classification(s)

• D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hübbe, Thomas	Köln, DE	7	4
Kijlstra, Johan	Odenthal, DE	32	251
Meisel, Karlheinrich	Odenthal, DE	13	50
Nennemann, Arno	Bergisch Gladbach, DE	23	67
Puppe, Lothar	Burscheid, DE	63	820
Renner, Gerd-Friedrich	Kürten, DE	10	20
Thiele, Bernd	Bensheim, DE	15	89

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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
May 04, 2010	US,7708862,B2   US7708862B2	GRANTED PATENT AS SECOND PUBLICATION
November 29, 2007	US,20070272383,A1   US20070272383A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7708862

Paper production with modified silica gels as microparticles

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