ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,423, issued on Oct. 21, was assigned to Mahle International GmbH (Germany).
"Filter device" was invented by Andreas Kollmann (Eitweg, Austria) and Patrick Wieler (Schorndorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A filter includes an end cap having a top surface, and a circumferential collar extending from the top surface, the circumferential collar having a radial surface that engages radially with one or more fingers that extend from an inner surface of a filter housing cover, a filter base, a filter element positioned between the end cap and the filter base, and a pin extending below the filter base."
The patent was filed on May...