ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,099, issued on Feb. 3, was assigned to The Regents of the University of California (Oakland, Calif.).
"Non-resonant acoustic metamaterial for rendering objects transparent to ultrasound" was invented by Monica Guma (San Diego), James Friend (San Diego) and Oscar Vazquez Mena (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "A non-resonant acoustic meta-material includes a layer of a first material formed on a first substrate and a layer of a second material formed on the layer of the first material to produce a stacked layer of first and second materials. At least a portion of the stacked layer of first and second materials is exposed to a ra...