ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,038, issued on Oct. 21, was assigned to KOHLBRAT & BUNZ GESELLSCHAFT M.B.H. (Radstadt, Austria).
"Method for filling a flexible element for supporting and stabilizing an injured person" was invented by Haakan Rugfelt (Radstadt, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method is provided for filling a flexible element with a loose granular material, wherein the element has two lengths of material connected to each other at points in the interior and along the edge, and includes leaving a filling opening. An air pressure difference between the interior and the external environment is generated, which widens the interior before it is fi...