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. 23, 2021

Filed:

Aug. 07, 2018
Applicant:

Denso International America, Inc., Southfield, MI (US);

Inventors:

Jonathan Logan, Walled Lake, MI (US);

Michael Lewis, Dearborn, MI (US);

Rafal Kaput, Sterling Heights, MI (US);

Blaise Friery, Farmington Hills, MI (US);

Assignee:

DENSO International America, Inc., Southfield, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/12 (2006.01); G01N 27/407 (2006.01); B01D 53/94 (2006.01); F01N 13/00 (2010.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
G01N 27/125 (2013.01); B01D 53/9495 (2013.01); F01N 13/008 (2013.01); F01N 13/009 (2014.06); G01N 27/407 (2013.01); F01N 2560/025 (2013.01); F01N 2560/026 (2013.01); F01N 2560/14 (2013.01); G01N 33/0037 (2013.01);
Abstract

A sensor probe having a first sensing element and a second sensing element. The first sensing element generates current changes in response to changes in a relative amount of a target element present in reference air versus a first exhaust gas chamber of the sensor probe. A second sensing element generates current changes in response to changes in a relative amount of the target element present in the first exhaust gas chamber and either a second exhaust gas chamber of the sensor probe or reference air.


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