ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,508, issued on June 2, was assigned to yoR Labs Inc. (Portland, Ore.).

"Method and apparatus for "thick-slice" 3-dimensional ultrasound imaging utilizing a multi-zone, multi-frequency ultrasound image reconstruction scheme with sub-zone blending" was invented by Anshumali Roy (Portland, Ore.), Chung Ping Cheung (Burnaby, Canada), Clark D. Brooks (Hillsboro, Ore.), Colin Michael Doolittle (Portland, Ore.) and Andrei Kniazev (Happy Valley, Ore.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems of ultrasonic imaging multiple depth zones. One method includes imaging a first zone using multi-angle plane wave imaging, imaging a second zone...