Antimicrobial filtration

United States of America Patent

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Aug 24, 2004
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Mar 12, 2001
filing date
Mar 28, 1997

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Abstract

A water treating system utilizes antimicrobial sand filter for killing bacteria and preventing microbial growth. Said antimicrobial sand filter consists of organic quaternary ammonium salt and inorganic metal compound.

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Patent Owner	Address
PARKER HOLDING SERVICES CORP	P O BOX 118-130 TAIPEI

International Classification(s)

C02F:TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chuang, Vincent T	Lin-Kou, TW	4	28
Shiau, Yen-Kuen	Taipei, TW	10	72
Wu, Chung-Hsun	Tao-Yuan, TW	10	73

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Antimicrobial filtration

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09802949

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US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
August 24, 2004	US,6780332,B2 US6780332B2	GRANTED PATENT AS SECOND PUBLICATION
July 26, 2001	US,20010009239,A1 US20010009239A1	FIRST PUBLISHED PATENT APPLICATION

PATENT NO	6780332
SERIAL NO	09802949
DOCKET NO

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09802949

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