ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,706,362, issued on Aug. 11, was assigned to KMW Inc. (Hwaseong-si, South Korea).
"Switchable filter" was invented by Nam Shin Park (Hwaseong-si, South Korea), Joung Hoe Kim (Hwaseong-si, South Korea), Jung Hee Won (Suwon-si, South Korea), Kwang Nam Jeon (Seoul, South Korea), Won Jae Yoon (Yongin-si, South Korea) and Hyung Sun Yoon (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a switchable filter comprising: a filter unit in which a first filter group for filtering the frequency of a first frequency band is provided on one surface thereof and a second filter group for filtering the frequency of a s...