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Jun 18, 2013
Grant Date
Dec 9, 2010
app pub date
May 18, 2010
filing date
May 20, 2009

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Abstract

The present invention relates to a method for the manufacture of a multilayered filter medium whose air permeability is at least 500 l/m²sec and a multilayered filter medium obtainable by said method which, when charged with 5 mg/cm²SAE-dust of the class “fine”, exhibits a pressure increase of no more than 100 Pa.

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Patent Owner	Address
JOHNS MANVILLE	717 SEVENTEENTH STREET DENVER CO 80202

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B01D:SEPARATION

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hassman, Christian	Mittelneufnach, DE	1	1
Lehnert, Jörg	Schwabmünchen, DE	1	1
Meitinger, Hans-Juergen	Groβaitingen, DE	2	1

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United States of America Patent

12782241

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PATENT NO	8465564
APP PUB NO	20100307338A1
SERIAL NO	12782241
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
June 18, 2013	US,8465564,B2 US8465564B2	GRANTED PATENT AS SECOND PUBLICATION
December 09, 2010	US,20100307338,A1 US20100307338A1	FIRST PUBLISHED PATENT APPLICATION

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