ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,550, issued on July 14, was assigned to HAMILTON SUNDSTRAND Corp. (Charlotte, N.C.).

"Compressor shroud with controllable bypass component formed of thermally adaptive materials and a thermoelectric junction" was invented by Viktor Kilchyk (Lancaster, N.Y.) and Brent J. Merritt (Southwick, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compressor case having a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gr...