Filler for use in paper manufacture and procedure for producing a filler

United States of America Patent

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Apr 23, 2002
Grant Date
Mar 29, 2001
app pub date
Nov 30, 2000
filing date
Jun 29, 1995

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Abstract

The invention relates to a filler used in paper manufacture and mainly consisting of calcium carbonate, and to a procedure for producing the filler. The filler consists of porous aggregates formed by precipitated calcium carbonate particles. In the procedure, calcium carbonate is precipitated.

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Patent Owner(s)

MINTEQ UK LIMITED;METSA-SERLA CORPORATION;M-REAL CORPORATION

International Classification(s)

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

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Leskela, Markku	Lohja As, FI	59	3393
Silenius, Petri	Kirkniemi, FI	29	375

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Filler for use in paper manufacture and procedure for producing a filler

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09726843

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PATENT NO	6375794
APP PUB NO	20010000063A1
SERIAL NO	09726843
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 23, 2002	US,6375794,B2 US6375794B2	GRANTED PATENT AS SECOND PUBLICATION
March 29, 2001	US,20010000063,A1 US20010000063A1	FIRST PUBLISHED PATENT APPLICATION

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09726843

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