ALEXANDRIA, Va., July 21 -- United States Patent no. 12,685,609, issued on July 21, was assigned to Ronin Surgical Corp. (Austin, Texas).

"Lighting apparatus" was invented by Clifton Learn (La Jolla, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lighting apparatus for use as a surgical headlamp is disclosed. A light emitting diode is positioned in a recess within a frustoconical, thermally-conductive heat sink that has a several circumferential ridges to provide a desired surface area for heat transfer. The diode and the heat sink are provided in a housing that also includes a fan for drawing ambient air into the housing to contact the heat sink and exhausting heated air. A lens is snap-fit into a ...