ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,471, issued on March 31, was assigned to Dometic Sweden AB (Solna, Sweden).
"Portable shelter" was invented by Mikael Thelin (Huddinge, Sweden) and Max Lawless (Colchester, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Portable shelters and in particular to portable shelters including an inflatable support structure. A portable shelter provides an inflatable support structure including a single interconnected passage for air, the passage comprising four substantially straight post portions defining upright corner posts of the support structure and a roof formation connecting upper ends of the post portions and having at least two int...