ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,446, issued on Sept. 30, was assigned to Semes Co. Ltd. (Chungcheongnam-do, South Korea).
"Liquid supplying unit and liquid supplying method" was invented by Jung Suk Goh (Hwaseong-si, South Korea), Kuk Saeng Kim (Yongin-si, South Korea), Do-Youn Lim (Hwaseong-si, South Korea) and Wan Hee Jeong (Hwaseong-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a liquid supplying unit, including: a nozzle; a liquid supply pipe configured to supply a treatment liquid to the nozzle; and an impurity removing unit installed in the liquid supply pipe to remove an impurity in the treatment liquid, in which the impurity...