ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,495,970, issued on Dec. 16, was assigned to Qisda Corp. (Taoyuan, Taiwan).
"Calibration device for an intraoral scanner" was invented by Tsung-Hsun Wu (Taoyuan, Taiwan), Ching-Ting Liu (Taoyuan, Taiwan) and Yuan-Yu Hsiao (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A calibration device for an intraoral scanner is provided. The calibration device includes a base, a moving portion, a circuit board, and a sensor. The moving portion is disposed on the base. The moving portion is moveable on the base along an extending direction of the calibration device. The moving portion includes a driving structure, a position determining portion, and ...