ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,115, issued on March 24, was assigned to Regents of the University of Minnesota (Minneapolis).
"Cryopreservative compositions and methods" was invented by John C. Bischof (St. Paul, Minn.), Michael L. Etheridge (St. Louis Park, Minn.) and Jeunghwan Choi (Winterville, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure describes compositions and methods related to cryoprotection of biomaterial. Generally, the cryoprotective composition includes a cryoprotective agent and magnetic nanoparticles effective for thawing a cryopreserved specimen comprising biomaterial with minimal biomaterial damage. In some embodiments, the composition is...