ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,993, issued on March 3, was assigned to CLEXTRAL (Firminy, France).

"Nozzle for extruding a material rich in protein and water, as well as an extrusion machine comprising such a nozzle" was invented by Michael Beyrer (Sierre/Siders, Switzerland), Christian Cachelin (Saviese, Switzerland) and Laurent Rapillard (Conthey, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A nozzle includes a tubular, temperature-controlled outer casing, centered on an axis. For a more compact and efficient design, the nozzle also includes an inner member coaxially arranged inside the outer casing and mounted rotatably about the axis relative to the outer casing...