ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,111, issued on July 7, was assigned to ExxonMobil Technology and Engineering Co. (Spring, Texas).

"Lubricants having improved low temperature, oxidation, and deposit control performance" was invented by Percy R. Kanga (Cherry Hill, N.J.), Camden N. Henderson (Winder, Ga.) and Lisa I. Yeh (Marlton, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a deposit resistant fluid includes combining a base stock and one or more additives to form a blended fluid configured to maintain fluidity in a low temperature environment and to resist forming deposits in an oxidizing environment. The base stock has a viscosity index of at least 80...