ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,367, issued on April 29, was assigned to Kyungdong Navien Co. Ltd. (Gyeonggi-do, South Korea).
"Ion removal unit for water heater, and scale-free boiler, scale-free water heater, and portable ion remover including the same" was invented by Soo Young Lee (Seoul, South Korea), Jun Kyu Park (Seoul, South Korea) and Gu Min Lim (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A scale-free boiler of the present disclosure includes a boiler case, a main flow path disposed inside the boiler case and in communication with a heating flow path disposed outside the boiler case to provide heating, a heat source for heating water flowing along th...