ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,334, issued on April 22, was assigned to COWAY Co. Ltd. (Gongju-si, South Korea).

"Water purifier" was invented by Min-Suk Chang (Seoul, South Korea), Yong-Yeon Noh (Seoul, South Korea), Woo-Jin Joo (Seoul, South Korea), Myeong-Hoon Kang (Seoul, South Korea), Ki-Hong Min (Seoul, South Korea), Jin-Woo Choi (Seoul, South Korea), Young-Jae Lee (Seoul, South Korea), Dong-Hui Kim (Seoul, South Korea), Sang-Jin Youn (Seoul, South Korea) and Gyeong-Jong Kim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a water purifier comprising: a filter unit which has a reverse osmosis membrane filter; a supply valve; an instantaneous hea...