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:
Dec. 01, 2020

Filed:

Aug. 03, 2018
Applicants:

Masoud Agah, Blacksburg, VA (US);

Muhammad Akbar, Blacksburg, VA (US);

Apoorva Garg, Blacksburg, VA (US);

Leyla Nazhandali, Blacksburg, VA (US);

Hamza Shakeel, Blacksburg, VA (US);

Inventors:

Masoud Agah, Blacksburg, VA (US);

Muhammad Akbar, Blacksburg, VA (US);

Apoorva Garg, Blacksburg, VA (US);

Leyla Nazhandali, Blacksburg, VA (US);

Hamza Shakeel, Blacksburg, VA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/60 (2006.01); B01J 20/22 (2006.01); B01J 20/281 (2006.01); B01J 20/32 (2006.01);
U.S. Cl.
CPC ...
G01N 30/6052 (2013.01); B01J 20/223 (2013.01); B01J 20/281 (2013.01); B01J 20/3291 (2013.01); B01J 2220/86 (2013.01);
Abstract

The present invention provides a detector and method for detecting substances in complex mixtures. The detector includes a microfabricated preconcentrator, a separation column with an on-chip thermal conductivity detector, a controller for controlling flow and thermal management and a user interface. The thermal conductivity detector includes a first resistor located at an inlet of the separation column and a second resistor located at an outlet of the separation column.


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