ALEXANDRIA, Va., June 18 -- United States Patent no. 12,324,718, issued on June 10, was assigned to GUILIN WOODPECKER MEDICAL INSTRUMENT Co. LTD. (Guangxi, China).
"Root canal treatment device" was invented by Xunxian Wu (Guangxi, China), Yoshitsugu Terauchi (Guangxi, China), Fengwen Wei (Guangxi, China), Kunyou Wu (Guangxi, China), Jianfeng Zhan (Guangxi, China), Xingzhi Xian (Guangxi, China) and Zerong Chen (Guangxi, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A root canal treatment device relates to the technical field of dental treatment instruments. The root canal treatment device includes a contra-angle hand-piece and a root canal file detachably connected to the contra-angle hand-piece, and f...