ALEXANDRIA, Va., May 19 -- United States Patent no. 12,629,574, issued on May 19, was assigned to Cobra Golf Inc. (Carlsbad, Calif.).

"Additive manufacturing for golf club shaft" was invented by Bryce W. Hobbs (Carlsbad, Calif.) and Ryan L. Roach (Encinitas, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A golf club shaft consists of a grip and a 3D printed body. The 3D printed body defines an outer sidewall, and an axis that extends centrally through a top and bottom of the golf club shaft, with an inner surface of the 3D printed body defining a first side and a second side that is located opposite the first side. An uninterrupted volume extends between the first side and the second side along an ent...