ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,538,390, issued on Jan. 27, was assigned to Align Technology Inc. (San Jose, Calif.).

"Defogging of protective sleeve for intraoral scanner" was invented by Nir Makmel (Tel Aviv, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "An intraoral scanning device comprises a housing having a longitudinal axis and comprising a head configured for insertion into an oral cavity of a patient, the head comprising an aperture for transmission of optical signals, a transparent element positioned within the aperture, wherein the transparent element is non-orthogonal to the longitudinal axis, and a defogging unit comprising a heating unit. A protective sleeve is c...