US Patent Issued to Donaldson on Aug. 12 for "Structures having re-entrant geometries on a porous material surface" (British, American Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,871, issued on Aug. 12, was assigned to Donaldson Co. Inc. (Bloomington, Minn.).

"Structures having re-entrant geometries on a porous material surface" was invented by Mikayla A. Yoder (Eagan, Minn.), Christopher P. Conklin (Columbia, Md.), Davis B. Moravec (Burnsville, Minn.), Andrew J. Dallas (Lakeville, Minn.), Tianheng Zhao (Cambridge, Great Britain), Richard W. Janse van Rensburg (Great Cambourne, Great Britain), Peter Jackson (Royston, Great Britain) and Blane Scott (Cambridge, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A filter material has a layer of porous material and a plurality of structures disposed on a surface of the...