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.
Patent No.:
Date of Patent:
Nov. 18, 2003
Filed:
May. 29, 2001
Applicant:
Inventors:
Li-Shiang Liang, Harvard, MA (US);
Anil Jha, Lincoln, MA (US);
John Arba, Bradford, MA (US);
Stephane Dupont, Elancourt, FR;
Assignee:
United States Filter Corporation, Palm Desert, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F 1/469 ; C02F 1/40 ;
U.S. Cl.
CPC ...
C02F 1/469 ; C02F 1/40 ;
Abstract
An electrodeionization apparatus and method for purifying a fluid. A fluid, such as water, can be purified by removing weakly ionizable species from the fluid. Weakly ionizable species may be dissociated at different pH levels to facilitate removal from the fluid in an electrodeionization device.