ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,347, issued on Nov. 25, was assigned to Mayo Foundation for Medical Education and Research (Rochester, Minn.).

"Non-metallic ultrasound-detectable markers" was invented by Christine U. Lee (Byron, Minn.), James F. Greenleaf (Rochester, Minn.), James L. Herrick (Rochester, Minn.), Alan L. Miller II (Rochester, Minn.), Michael J. Yaszemski (Rochester, Minn.), James W. Jakub (Rochester, Minn.), Matthew W. Urban (Rochester, Minn.), Benjamin G. Wood (Rochester, Minn.) and Nathan J. Brinkman (Rochester, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Markers (e.g., treatment site markers, biopsy site markers) are composed of a non-metallic material h...