ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,916, issued on April 14, was assigned to The Lubrizol Corp. (Wickliffe, Ohio).
"Open gear lubricant composition" was invented by Jennifer E. Clark (Aurora, Ohio), Robert D. Dura (Broadview Heights, Ohio), Carlos Alberto Nazario (Willoughby, Ohio) and Yang Cao (Solon, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides an open gear lubricant composition containing a blend of ethylene-propylene copolymers and a metallic soap thickener. The blend of ethylene-propylene copolymers includes a first ethylene-propylene copolymer having a kinematic viscosity at 100deg C. of 80 centistokes to 220 centistokes and a second ethylene-propy...