ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,766, issued on April 7, was assigned to ROLLS-ROYCE PLC (London).

"High power epicyclic gearbox and operation thereof" was invented by Mark Spruce (Derby, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "An engine for an aircraft includes an engine core having a turbine, a compressor, and a core shaft connecting the turbine to the compressor; a fan located upstream of the engine core, the fan having a plurality of fan blades; and a gearbox. The gearbox is an epicyclic gearbox and comprises a sun gear, a plurality of planet gears, a ring gear, and a planet carrier on which the planet gears are mounted. The radial bending stiffness of the ...