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

Patent Owner(s)

Patent Owner	Address
OMYA INTERNATIONAL AG	BASLERSTRASSE 42 OFTRINGEN 4665

International Classification(s)

• C09C:TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBRO....
• D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Buri, Matthias	Rothrist, CH	126	731
Gane, Patrick A C	Rothrist, CH	172	533
Karth, Beat	Oberoenz, CH	19	295
Pudack, Claudia	Zürich, CH	8	5

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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	Jul 30, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jul 30, 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
January 30, 2018	US,9879139,B2   US9879139B2	GRANTED PATENT AS SECOND PUBLICATION
December 08, 2011	US,20110297043,A1   US20110297043A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9879139

Process for manufacturing calcium carbonate materials having a particle surface with improved adsorption properties

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