ALEXANDRIA, Va., April 7 -- United States Patent no. 12,593,892, issued on April 7, was assigned to Spannrit GmbH (Kleinostheim, Germany).
"Orthopedic PUR foam plastic shoe insole blank" was invented by Roland Katzer (Kleinostheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Orthopedic PUR foam plastic shoe insole blank having at least one cushioning body and a PUR supporting body supporting a foot and three-dimensionally molded in a RIM process. The PUR supporting body has a shoe-side underside and a foot-side upper side, on which an anatomically shaped, orthopedically functional footbed is formed. The at least one cushioning body consists of a prefabricated, two-dimensional PU sheet material tha...