US Patent Issued to Afton Chemical on Nov. 25 for "Antiwear systems for improved wear in medium and/or heavy duty diesel engines" (Virginia Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,066, issued on Nov. 25, was assigned to Afton Chemical Corp..

"Antiwear systems for improved wear in medium and/or heavy duty diesel engines" was invented by Leah Donham (Henrico, Va.) and Abaigeal Ritzenthaler (Richmond, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to lubricating compositions and, in particular, lubricating compositions suitable for medium and/or heavy duty diesel engines having low levels of phosphorus and/or zinc but still achieving good valve train wear by including an antiwear system provided from overbased zinc dihydrocarbyl dithiophosphates having a selected average degree of branching and...