ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,344, issued on Jan. 20, was assigned to KEYOU GmbH (Munich).

"Method for operating a spark-ignition internal combustion engine and controller for carrying out the method" was invented by Daniel Koch (Munich).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for operating a spark-ignition internal combustion engine, wherein the internal combustion engine is operated using hydrogen as fuel, a lambda injection value is a value that indicates the formation of a mixture on the basis of an injection fuel quantity (Finjection) to be supplied to a combustion chamber of the internal combustion engine and an air quantity (L) to be supplied to the combust...