ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,650, issued on March 18, was assigned to Parker-Hannifin Corp. (Cleveland).

"Filter element with keyed spinning thread-on attachment" was invented by Michael P. Vercammen (Turlock, Calif.), Kevin B. Downs (Coventry, Conn.) and Rajeswara R. Kurri (Collierville, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A filter element including a canister, media, and a spinning disc element is provided. The canister circumscribes a central axis. A tap plate is at an end of the canister having a central threaded opening along the central axis of the canister. The tap plate includes a first outer opening radially spaced between the central opening and a pe...