ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,911, issued on July 21, was assigned to OERLIKON METCO (US) INC. (Westbury, N.Y.).

"Chemically complex ceramic abradable sealant materials" was invented by Tyler Harrington (New York), Hwasoo Lee (Hicksville, N.Y.), Timothy Tadros Sharobem (Brooklyn, N.Y.) and Gregory Szyndelman (Villigen, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A chemically complex oxide powder is provided that forms an abradable sealant coating for a turbine engine. Primary property advantages of the chemically complex oxide include low resistance to erosion and reduced wear on blades and labyrinth seal knife edges in a turbine engine. Secondary property advanta...