ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,772, issued on March 25, was assigned to Continuous Composites Inc. (Coeur d'Alene, Idaho).
"Method and apparatus for continuous composite three-dimensional printing" was invented by Kenneth Lyle Tyler (Coeur d'Alene, Idaho).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for the additive manufacturing of three-dimensional objects are disclosed. Two or more materials are extruded simultaneously as a composite, with at least one material in liquid form and at least one material in a solid continuous strand completely encased within the liquid material. A means of curing the liquid material after extrusion hardens the composite. ...