ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,122, issued on June 16, was assigned to IREMA-FILTER GMBH (Postbauer-Pavelsbach, Germany).
"Zigzag-folded nonwoven material" was invented by Andreas Seeberger (Nuremberg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for producing a zigzag-folded nonwoven material for a filter, wherein the nonwoven material is produced by a melt-spinning process, comprising the following work steps: folding the nonwoven material by means of a folding device, whereby a plurality of folds results, wherein the folds divide the nonwoven material into first limbs and second limbs such that the nonwoven material is folded in zigz...