ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,771, issued on April 21, was assigned to The Lubrizol Corp. (Wickliffe, Ohio).
"Grease composition" was invented by Robert D. Dura (Broadview Heights, Ohio), Jennifer E. Clark (Aurora, Ohio), Carlos Alberto Nazario (Willoughby, Ohio) and Amanda E. Freshwater (Avon, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "The instant disclosure provides a grease composition containing an ash-free phosphonate ester mixture, which comprises of an ash-free phosphonate ester mixture of a cyclic phosphonate ester species and an oligomeric phosphonate ester species. The grease composition further includes a metallic soap thickener. The grease compositions disc...