ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,996, issued on Sept. 23, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (Suwon-si, South Korea).

"Link hinge structure and electronic device comprising same" was invented by Daehyeong Park (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hinge structure may include at least some of: a first rotary bar, a second rotary bar, a first interlocking gear bar and a second interlocking gear bar, a first support bar and a second support bar, a third interlocking gear bar and a fourth interlocking gear bar, a third support bar and a fourth support bar, a first fixing shaft, a second fixing shaft, a third fixing shaft, a fourth fixing sha...