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.
Patent No.:
Date of Patent:
Jan. 10, 2017
Filed:
Jul. 12, 2012
Martin Roesch, Rodgau, DE;
Martin Votsmeier, Luetzelsachsen Stadt Weinheim, DE;
Ralf Moos, Bayreuth, DE;
Gerhard Fischerauer, Bayreuth, DE;
Gunter Hagen, Helmsbrechts, DE;
Sebastian Reiss, Bayreuth, DE;
Martin Roesch, Rodgau, DE;
Martin Votsmeier, Luetzelsachsen Stadt Weinheim, DE;
Ralf Moos, Bayreuth, DE;
Gerhard Fischerauer, Bayreuth, DE;
Gunter Hagen, Helmsbrechts, DE;
Sebastian Reiss, Bayreuth, DE;
UMICORE AG & CO. KG, Hanau-Wolfgang, DE;
Abstract
The present invention relates to a process for determining the state of an exhaust-gas purification device. The exhaust-gas purification device is one which can store gas and/or particles. By means of the proposed process, it is for example possible for the loading state of the exhaust-gas aftertreatment system, for example the oxygen storage state of a catalytic converter which is provided with an oxygen-storing material, such as for example a three-way catalytic converter, to be analyzed. The present process operates contactlessly through the analysis of resonances which arise upon the excitation of the catalytic converter using the purification device as microwave cavity resonator.