ALEXANDRIA, Va., July 30 -- United States Patent no. 12,374,868, issued on July 29, was assigned to FEDERAL-MOGUL IGNITION GMBH (Neuhaus-Schierschnitz, Germany).
"Spark plug electrode and spark plug" was invented by Daniel Koenig (Rodental, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A spark plug having a firing tip that is attached to a ceramic-conductive interface can help promote thermal conductivity at the spark gap. The spark plug electrode includes a conductive core having a conductive weld zone and a ceramic sheath extending at least partially around the conductive core and having a sparking portion. The ceramic sheath and the conductive core form a ceramic-conductive interface at the spark...