ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,228,033, issued on Feb. 18, was assigned to RTX Corp. (Farmington, Conn.).

"Blade outer air seal with machinable coating at sealing surfaces" was invented by Joseph Micucci (Scarborough, Maine), Daniel S. Rogers (Lyman, Maine), Mikayla M. Rogers (Portland, Maine), Danielle Mahoney (Granby, Conn.) and Carson A. Roy Thill (Buxton, Maine).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas turbine engine includes a compressor section, a combustor section and a turbine section for rotation on an axis. The turbine section includes at least one row of rotating turbine blades each having a radially outer tip. A blade outer air seal is positioned radially outwa...