ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,912, issued on April 15, was assigned to The Lubrizol Corp. (Wickliffe, Ohio).
"Lubricant compositions for direct injection engine" was invented by Patrick E. Mosier (Bay Village, Ohio), Jeffry G. Dietz (Shaker Heights, Ohio), Alexander Sammut (Chardon, Ohio), Mary Galic Raguz (Mentor, Ohio) and Matthew D. Gieselman (Wickliffe, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and an ashless dispersant. The ashle...