ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,033, issued on Jan. 27, was assigned to Medit Corp. (Seoul, South Korea).

"Method for investigating optical element embedded in intraoral scanner, and system using same" was invented by Soo Bok Lee (Seoul, South Korea) and Sung Bin Im (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a method for self-investigating an optical element embedded in an intraoral scanner, and a system using the same. The reliability of an intraoral scanner may decrease due to foreign matter attached to an optical element. Accordingly, the present disclosure provides a prescribed method for investigating foreign matter at...