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:
Apr. 01, 2025
Filed:
May. 17, 2021
Mann+hummel Gmbh, Ludwigsburg, DE;
Stefan Diersch, Trebgast, DE;
MANN+HUMMEL GmbH, Ludwigsburg, DE;
Abstract
A filter body is provided with a filter medium that has filter layers arranged one over the other, wherein each filter layer is provided with at least one active material. The at least one active material is the same in all of the filter layers. The filter layers are to be flowed through serially in a through-flow direction of the filter body. Sensor devices are provided, wherein each sensor device is arranged between two of the filter layers neighboring each other, respectively, so that the sensor devices, in the through-flow direction of the filter body, are arranged one after another in order to determine a sorption capacity of the at least one active material of each filter layer over a service life of the filter body.