US Patent Issued to Kyoung Gee Ahn, GBS Commonwealth, PMT Republic on March 18 for "Height-expandable spinal cage" (South Korean Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,323, issued on March 18, was assigned to Kyoung Gee Ahn (Seoul, South Korea), GBS Commonwealth Co. Ltd. (Seoul, South Korea) and PMT Republic Inc. (Walnut, Calif.).

"Height-expandable spinal cage" was invented by Kyoung Gee Ahn (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a height-expandable spinal cage including an upper plate and a lower plate disposed to face each other, a frame disposed between the upper plate and the lower plate, the frame having a space formed therein, a block disposed between the upper plate and the lower plate and configured to be movable in a longitudinal direction inside the frame, and a...