US Patent Issued to The Lubrizol on May 20 for "Zinc free lubricating compositions and methods of using the same" (British, American, Australian Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,141, issued on May 20, was assigned to The Lubrizol Corp. (Wickliffe, Ohio).

"Zinc free lubricating compositions and methods of using the same" was invented by Paul R. Vincent (Belper, Great Britain), William R. S. Barton (Belper, Great Britain), Emma Fahey (Belper, Great Britain), Yanshi Zhang (Solon, Ohio), Mark C. Davies (Derby, Great Britain) and Ewan E. Delbridge (Victoria, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "The instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity, an ashless phosphorus-containing antiwear agent an alkaline earth metal detergent, an ashless antioxidant, an...