ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,271, issued on Oct. 21, was assigned to TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD. (Hsinchu, Taiwan).
"Liquid supply system and liquid preparation method" was invented by Fang-Pin Chiang (Taichung, Taiwan), Chi-Tung Lai (Hsinchu, Taiwan) and Heng-Yi Tseng (Hsinchu County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid preparation method is provided. The method includes measuring, with a detection member, a quantity of a liquid stored in a liquid tank by emitting a detection signal toward a floating member positioned in a tube. The tube extends in a height direction of the liquid tank and fluidly connects to two connecting ports ...