ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,766, issued on April 21, was assigned to Visuray Technology Ltd (Sliema, Malta).

"Detecting anomalies in annular materials of single and dual casing string environments" was invented by Philip Teague (Houston) and Alex Stewart (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "An x-ray based cement evaluation tool for measurement of the density of material volumes within single, dual and multiple-casing wellbore environments is provided, the tool including at least an internal length comprising a sonde section, wherein said sonde section further comprises an x-ray source; a radiation shield for radiation measuring detectors; sonde-depend...