Phase Change Matters

U.S. patent application 20180202700 (applicant Viking Cold Solutions Inc., Houston, Texas):

"A thermally insulated structure for shipping goods, comprising: an insulated box comprising a goods receptacle and a phase change material module receptacle; a phase change material module; and a set of vacuum panels configured to form an encapsulating layer around the insulated box."

http://www.freepatentsonline.com/20180202700.pdf