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. 17, 2009

Filed:

Sep. 19, 2006
Applicants:

Yan Liu, Palo Alto, CA (US);

Victor Barreto, Campbell, CA (US);

Christopher A. Pohl, Union City, CA (US);

Inventors:

Yan Liu, Palo Alto, CA (US);

Victor Barreto, Campbell, CA (US);

Christopher A. Pohl, Union City, CA (US);

Assignee:

Dionex Corporation, Sunnyvale, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 30/02 (2006.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for ion chromatography comprising a suppressor comprising a housing and a liquid conduit segment disposed in the housing, the liquid conduit segment including a membrane, the membrane having an inlet section adjacent the inlet of the conduit segment and an outlet section adjacent the outlet of the conduit segment, the inlet section having ion exchange sites capable of transmitting ions of one charge, positive or negative, and the outlet section being substantially non-retentive electrostatically for charged ionic species. Also, the method of using the apparatus.


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