ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,708,524, issued on Aug. 18, was assigned to L&K BIOMED Co. LTD. (Yongin-si, South Korea).

"Height-adjustable spinal fusion cage" was invented by Gook Jin Kang (Seoul, South Korea) and Jong Hoon Moon (Busan, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A height-adjustable spinal fusion cage including a first end plate and a second end plate, a distal movement block fixed to be relatively movable to a dove-tail groove formed at a distal end of each of the first end plate and the second end plate, a proximal movement block fixed to be relatively movable to a dove-tail groove formed at a proximal end of each of the first end plate and the seco...