ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,637, issued on March 24, was assigned to Paul Hettich GmbH & Co. KG (Kirchlengern, Germany).

"Household appliance" was invented by Johann Braun (Hiddenhausen, Germany), Johann-Sebastian Lessmann (Loehne, Germany) and Artur Noak (Bad Oeynhausen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A household appliance includes an interior space for accommodating a rack system, and a wall element on opposite sides of the interior space. A locking projection is arranged on at least one of the wall elements. The rack system has a stationary part arranged in the interior space and a part movable at least partially in front of the interior space via g...