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:
Apr. 15, 2014

Filed:

Dec. 03, 2009
Applicants:

Kevin C. O'brien, San Ramon, CA (US);

Jeffery J. Haslam, Livermore, CA (US);

William L. Bourcier, Livermore, CA (US);

Inventors:

Kevin C. O'Brien, San Ramon, CA (US);

Jeffery J. Haslam, Livermore, CA (US);

William L. Bourcier, Livermore, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 69/02 (2006.01); B01D 61/44 (2006.01); B01D 61/46 (2006.01); B01D 69/06 (2006.01); C02F 1/469 (2006.01);
U.S. Cl.
CPC ...
B01D 69/02 (2013.01); B01D 2325/14 (2013.01); C02F 1/4693 (2013.01); B01D 2325/02 (2013.01); B01D 2325/04 (2013.01); B01D 2325/16 (2013.01);
Abstract

A device according to one embodiment includes a porous membrane having a surface charge and pore configuration characterized by a double layer overlap effect being present in pores of the membrane. A device according to another embodiment includes a porous membrane having a surface charge in pores thereof sufficient to impart anion or cation selectivity in the pores. Additional devices, systems and methods are also presented.


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