ALEXANDRIA, Va., March 17 -- United States Patent no. 12,575,600, issued on March 17.
"Device for filtering smoke" was invented by Andreas Setzer (Vienna).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for filtering smoke, in particular tobacco and/or cannabis cigarette filters, comprising a jacket, in which jacket there are provided at least a first portion, a second portion and a third portion, the second portion being arranged between the first portion and the third portion, wherein in the first section a first nonwoven filter material, in the second section a porous filter material, and in the third section a second nonwoven filter material being provided in the third section; wherein a fourth se...