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:
Feb. 17, 2009

Filed:

May. 04, 2004
Applicants:

H Ben Hsieh, Mountain View, CA (US);

Meng H. Lean, Santa Clara, CA (US);

Bryan T. Preas, Palo Alto, CA (US);

Armin R. Volkel, Mountain View, CA (US);

Inventors:

H Ben Hsieh, Mountain View, CA (US);

Meng H. Lean, Santa Clara, CA (US);

Bryan T. Preas, Palo Alto, CA (US);

Armin R. Volkel, Mountain View, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/453 (2006.01);
U.S. Cl.
CPC ...
Abstract

A portable apparatus for extracting and concentrating bioagents within a fluid medium includes a container with sample solution inlet port and traveling wave grids patterned on surfaces of the container. The traveling wave grids cause bioagents to migrate to a specified surface within the container and then to an extraction port. The traveling wave grids include a substrate, across which extend a collection of closely spaced and parallel electrically conductive electrodes, and a collection of buses providing electrical communication with the collection of conductive electrodes. A voltage controller provides a multiphase electrical signal to the collection of buses and electrodes of the traveling wave grids.


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