ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,041, issued on Sept. 30, was assigned to KEN DALL ENTERPRISE Co. LTD. (New Taipei, Taiwan).
"Knee joint structure featuring hydraulic control" was invented by Chia-Pao Cheng (New Taipei, Taiwan), Hsiang-Ming Wu (New Taipei, Taiwan) and Chih-Hsuan Liang (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A knee joint structure featuring hydraulic control includes a knee-joint base having a receiving space, an upper fluid channel, a lower fluid channel and a common channel; a hydraulic axle core arranged in the receiving space; a fluid barrier block arranged on an internal wall of the knee-joint base and in contact with the hydraulic a...