US Patent Issued to 3D Systems on April 15 for "Additive manufacturing by extruding inhibited crystallization polymers" (North Carolina, Colorado Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,185, issued on April 15, was assigned to 3D Systems Inc. (Rock Hill, S.C.).

"Additive manufacturing by extruding inhibited crystallization polymers" was invented by Meisam Shir Mohammadi (Charlotte, N.C.) and Frank A. McKiel Jr. (Colorado Springs, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and processes are provided by which inhibited-crystallization polymers may be employed as feedstock materials in thermoplastic extrusion-type additive manufacturing systems. Counteracting the tendency of such polymers to uncontrolledly settle into an amorphous state upon cooling under typically used conditions, techniques are disclosed for control...