ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,861, issued on July 15, was assigned to SECOP GMBH (Flensburg, Germany).
"Portable cooling unit" was invented by Olaf Puschmann (Wanderup, Germany) and Sebastian Echelmeyer (Flensburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Portable cooling unit (1) for transporting temperature-sensitive goods while maintaining a desired cooling temperature, said portable cooling unit (1) comprising a multi-stage cascade refrigeration system (2) adapted to operate during transport of the portable cooling unit (1) and to cool down to and maintain temperatures of more than 70 K below ambient temperature, a suspension system (3) adapted and arranged to ...