ALEXANDRIA, Va., June 6 -- United States Patent no. 12,279,759, issued on April 22, was assigned to HANGZHOU ISCANBOT Co. LTD. (Hangzhou, China).

"Dental imaging device" was invented by Zeyu Zhao (Hangzhou, China) and Jianqiao Cui (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one aspect, the present application provides a dental imaging device, it comprises: a base, an elongated light blocking housing, a retractor and an attachment mechanism, wherein the elongated light blocking housing is mounted on a first side of the base and defines a channel, the retractor is for opening a user's lips and is provided on a first end away from the base of the elongated light blocking housing, the atta...