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. 25, 2022
Filed:
Sep. 27, 2019
Mann+hummel Gmbh, Ludwigsburg, DE;
Stefan Orendt, Neudrossenfeld, DE;
Thomas Pemsel, Ludwigsburg, DE;
MANN+HUMMEL GmbH, Ludwigsburg, DE;
Abstract
A filter medium () for filtering a fluid, in particular for use in an interior air filter (), comprises a spun-bonded nonwoven formed at least in part of multi-component segmented pie fibers () having at least a first plastic component () and a second plastic component (). The multi-component fibers () are largely non-split and in order to manufacture same, segmented pie filaments are spun in a spun-bonding process (S) to form a spun-bonded nonwoven (). The segmented pie filaments then form the multi-component fibers (), the first plastic component () and/or the second plastic component () being made in particular of a polypropylene.