ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,664, issued on May 19, was assigned to The Texas A&M University System (College Station, Texas).

"Chemically modified shape memory polymer embolic foams with increased X-ray visualization" was invented by Landon D. Nash (Sunnyvale, Calif.) and Kendal P. Ezell (Tomball, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An embodiment includes a system comprising: an iodine containing thermoset open-cell shape memory polymer (SMP) foam that is x-ray visible; wherein (a) the SMP foam is configured to expand from a compressed secondary state to an expanded primary state in response to thermal stimulus, (b) the SMP foam is a poly(urethane-urea-amide). O...