ALEXANDRIA, Va., June 6 -- United States Patent no. 12,279,958, issued on April 22, was assigned to CORELINK LLC (St. Louis).

"Interbody spacer for spinal fusion" was invented by Josh Arnone (St. Charles, Mo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An interbody spacer for spinal fusion surgery includes first and second opposite side walls that have open-cell metal foam at upper and lower faces, and a three-dimensional lattice disposed between open-cell metal foam at the upper and lower faces. The open-cell metal foam is in communication with the three-dimensional lattice so that bone growth can enter the three-dimensional lattice from the open-cell metal foam. The interbody spacer may be formed by add...