ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,219, issued on July 15, was assigned to HEXACHECK INC. (Daejeon, South Korea).

"Electrocardiogram measurement apparatus" was invented by In-Duk Hwang (Sejong, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an electrocardiogram measurement apparatus (measurement sensor) which can be used in combination with a smartphone by an individual. The electrocardiogram measurement apparatus according to the present invention comprises: two amplifiers for receiving electrocardiogram signals from a first electrode and a second electrode; one electrode driving unit; a third electrode for receiving an output of the elec...