ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,490,804, issued on Dec. 9, was assigned to ON CLOUDS GMBH (Zurich).

"Sole with variable damping properties" was invented by Nils Arne Altrogge (Zurich, Switzerland), Johannes Voelchert (Zurich, Switzerland), Keivn Dellion (Zurich, Switzerland), Martin Ruegg (Zurich, Switzerland), Ilmarin Heitz (Zurich, Switzerland) and Renaud Despots Allaire (Zurich, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sole for a running shoe including an elastic midsole with a base surface, which delimits the midsole opposite the vertical direction of the midsole, and a surface, which delimits the midsole in the vertical direction. The midsole is divided into a ...