ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,220,730, issued on Feb. 11, was assigned to TRIPLE WIN TECHNOLOGY(SHENZHEN) CO.LTD. (Shenzhen, China).
"Clamping device and cleaning device" was invented by Liang-Yuan Li (Shenzhen, China), Lian-Jie Tan (Shenzhen, China) and Yuan Wen (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A clamping device for clamping silicon wafers of different sizes and cleaning same includes a main body and a plurality of clamping mechanisms. The surface of the main body defines a plurality of receiving grooves. Separate circular and concentric rows of clamping mechanisms are radially disposed around a central axis of the main body. The clamping mechanism in...