ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,609, issued on July 8, was assigned to Hermes-Epitek Corp. (Taipei, Taiwan).
"Pre-wet system having pneumatic circulation" was invented by Jui-Hsiung Hsu (Taoyuan, Taiwan), Chi-Yi Lin (Hsinchu, Taiwan), Yu-Liang Huang (Kaohsiung, Taiwan) and Jih-Jenn Huang (Hsinchu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In some embodiments, a system for pre-wetting a filter includes a filter, a piping system, a first gas, a second gas, a first buffer tank, and a second buffer tank. The first gas drives the solvent to clean the filter. The two buffer tanks store the solvent discharged from the filter. The second gas selectively drives the solvent in th...