The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 16, 2004

Filed:

Sep. 28, 2000
Applicant:
Inventors:

Monica G. Varriale, Woodstock, GA (US);

Robert J. Lyng, Alpharetta, GA (US);

Michael S. Brunner, Roswell, GA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/28 ; C02F 9/02 ; C02F 9/08 ; B01D 2/956 ; B01D 2/958 ;
U.S. Cl.
CPC ...
C02F 1/28 ; C02F 9/02 ; C02F 9/08 ; B01D 2/956 ; B01D 2/958 ;
Abstract

The present invention provides a multistage liquid filtering apparatus and a multistage process for filtering microorganisms and other unwanted impurities from the liquid. The invention employs a microorganism-removing filter stage prior to an activated carbon filter stage and especially adaptable for use with home water supplies.


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