ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,448, issued on Aug. 12, was assigned to Life & Mobility Development B.V. (Doetinchem, Netherlands).
"Backrest and chair" was invented by Henricus Antonius Maria Staarink (Numansdorp, Netherlands) and Marike Bijtelaar (Hulshorst, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "Backrest for supporting the back of a seated person comprising a rigid backrest frame and a back support structure comprising substantially non-elastic, flexible sheet material. The non-elastic, flexible sheet material comprising a central region and at least four lateral segments, wherein the backrest support surface in its loaded condition has a form-stable, a thre...