ALEXANDRIA, Va., April 7 -- United States Patent no. 12,593,995, issued on April 7, was assigned to GOERTEK INC. (Weifang, China).
"Blood pressure measuring device" was invented by Chao Liu (Weifang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A blood pressure measuring device comprises a device body, an air bag, an air nozzle and a piston, an air pump is provided in the device body, a casing of the device body is provided with a mounting hole and an air channel connection hole communicating with the mounting hole, the air channel connection hole is communicated with an air outlet of the air pump, the piston is installed in the mounting hole, the piston includes a piston sealing portion capable of f...