ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,296, issued on Sept. 29, was assigned to Boston Scientific Scimed Inc. (Maple Grove, Minn.).

"Iodine labeled hydrogels and precursors thereof with improved radiopacity" was invented by Joseph T. Delaney Jr. (Minneapolis), Kolbein Kolste (Acton, Mass.), Tatyana Dyndikova (Minneapolis) and Yen-Hao Hsu (Shrewsbury, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In some embodiments, the present disclosure pertains to systems for forming a hydrogel that comprise (a) a first composition that comprises a polyiodinated polyamino compound and (b) a second composition that comprises a reactive multi-arm polymer that comprises a plurality of hydrophilic...