ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,611, issued on Sept. 9, was assigned to Creative System Technology Ltd. (Hsinchu, Taiwan).

"Method for producing grinding liquid mixing tank and the structure thereof" was invented by Huo Lung Cheng (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a grinding liquid mixing tank and the structure thereof, the method includes: using a tank body made of PP or PVDF wherein a bottom thereof has a conical arc-shaped wall having at least one wall hole; using a rotor case made of PP or PVDF and including a bottom case wall, a side wall surrounding the bottom case wall, and a connecting wall connected to a top edge of th...