ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,214, issued on May 13, was assigned to THE WAVE TALK INC. (Daejeon, South Korea).
"Device for water examination" was invented by Young Dug Kim (Seongnam-si, South Korea) and Kyoung Man Cho (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a water examination device including: a main body; a fluid accommodation unit formed in the main body; a wave source for irradiating waves toward the fluid accommodation unit; a detector for detecting a laser speckle at every set time period that is set in advance, the laser speckle being generated due to multiple scattering of the waves in the fluid; a controller for estimating existen...