ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,512, issued on April 21, was assigned to ROBERT BOSCH GMBH (Stuttgart, Germany).
"Spark plug with a sealing earth electrode" was invented by Lars Menken (Donzdorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A spark plug. The spark plug includes a housing; an insulator arranged within the housing; a center electrode arranged within the insulator; and an earth electrode arranged within the housing and between the housing and the insulator. The earth electrode and the center electrode are arranged such that they form a spark gap, and the spark gap is within the housing."
The patent was filed on Nov. 21, 2022, under Application No. 18/716,...