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:
Oct. 27, 2026
Filed:
Dec. 07, 2023
Mann+hummel Gmbh, Ludwigsburg, DE;
Dennis Stark, Mauer, DE;
Tatiana Kloft, Ludwigsburg, DE;
Andreas Pelz, Kornwestheim, DE;
Joachim Stinzendoerfer, Speyer, DE;
Andreas Beck, Kirchheim, DE;
MANN+HUMMEL GmbH, Ludwigsburg, DE;
Abstract
A folded filter medium for a filter element is provided with a cellulose substrate impregnated with a phenolic resin and furthermore provided with an ePTFE layer arranged on the cellulose substrate. A filter element with such a filter medium is provided. A filter assembly with a filter element having such a filter medium is also provided. A method for producing such a filter medium includes the steps of impregnating the cellulose substrate with the phenolic resin; applying the ePTFE layer onto the cellulose substrate impregnated with the phenolic resin; folding the cellulose substrate with the ePTFE layer applied thereon; and curing the phenolic resin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile