US Patent Issued to FEDERAL-MOGUL IGNITION on Aug. 5 for "Spark plug electrode having ruthenium-based material" (Michigan Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,375, issued on Aug. 5, was assigned to FEDERAL-MOGUL IGNITION LLC (Northville, Mich.).

"Spark plug electrode having ruthenium-based material" was invented by Shuwei Ma (Ann Arbor, Mich.) and Nicholas Ritsema (Brighton, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spark plug electrode made from a ruthenium-based material that includes one or more of the following characteristics: an equiaxed grain structure, a grain structure with an average grain size that is less than or equal to 50 micro metre, a grain structure with an average porosity that is less than or equal to 2%, and/or a grain structure with an average non-homogeneity ratio that i...