ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,291, issued on June 17, was assigned to Fulian Yuzhan Precision Technology Co. Ltd. (Shenzhen, China).

"Joint assembly, swing device, and robot" was invented by Zhen-Xing Liu (Shenzhen, China), Xiao-Ming Xu (Shenzhen, China), Bo Long (Shenzhen, China), Zhen Chen (Shenzhen, China) and Yan-Chun Zhu (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A joint assembly, a swing device and a robot are provided. The joint assembly includes a movable part defining a movable groove and a rotating part. The rotating part includes a rotating body being a spherical shape. The rotating body is rotatably received in the movable groove to adapt to the ...