ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,324, issued on May 27, was assigned to MVE Biological Solutions US LLC (Brentwood, Tenn.).
"Cryogenic freezer" was invented by John Corey (Melrose, N.Y.), Keith Gustafson (Waleska, Ga.) and Buzz Bies (Manchester, N.H.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cryogenic freezer features a dewar defining a storage space. A reservoir is positioned within or adjacent to the storage space and is configured to contain a cryogenic liquid with a headspace above the cryogenic liquid in a reservoir interior space that is sealed with respect to the storage space. A refrigeration module is in heat exchange relationship with the reservoir. A sensor is con...