US Patent Issued to BEIJING CHONGLEE MACHINERY ENGINEERING on June 30 for "Spinning-drawing-winding device and combined machine for industrial polylactic-acid fiber" (Chinese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,894, issued on June 30, was assigned to BEIJING CHONGLEE MACHINERY ENGINEERING Co. LTD. (Beijing).

"Spinning-drawing-winding device and combined machine for industrial polylactic-acid fiber" was invented by Xiaodong Man (Beijing), Junxian Qiu (Beijing), Kai Xu (Beijing), Yubo Mao (Beijing), Yadi Li (Beijing), Yuguo Ren (Beijing), Bo Hou (Beijing), Baocheng Zhang (Beijing), Hai Jiao (Beijing), Yan Wu (Beijing), Ruixin Sun (Beijing), Lei Zhang (Beijing) and Yu Dong (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spinning-drawing-winding device for industrial polylactic-acid fiber includes a double-surface oiling mechanism, a filament shearin...