ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,575, issued on Oct. 7, was assigned to POINT ROBOTICS MEDTECH INC. (Hsinchu County, Taiwan).
"Calibration device" was invented by Chao-Wei Wu (Hsinchu County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A calibration device includes a calibration member, a handle, a fixing button, and a plurality of first markers. The calibration member includes a calibration body and a calibration groove. The calibration body has a first side and a second side opposite to the first side. The calibration groove is formed on the first side. The handle has a grip portion, and is adjacent to the first side and detachably disposed above the calibration groove. ...