ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,826, issued on Feb. 24, was assigned to Federal-Mogul Powertrain LLC (Northville, Mich.).

"Free graphite containing powders" was invented by Mathieu Boisvert (Waupun, Wis.), Gilles L'Esperance (Candiac, Canada), Philippe Beaulieu (Coventry, Great Britain) and Denis B. Christopherson Jr. (Waupun, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An improved atomized powder metal material containing an increased amount of free graphite after heat treatment and/or sintering is provided. The powder metal material is typically a ferrous alloy and includes carbon in an amount of 1.0 wt. % to 6.5 wt. % and silicon in an amount of 0.1 wt. % to 6.0 wt. %, ...