ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,457, issued on Oct. 7, was assigned to MIELE & CIE. KG (Gutersloh, Germany).

"Method and control unit for activating detergent for a cleaning appliance with a rotatable drum without ribs, and cleaning appliance" was invented by Benedikt Fechtel (Rheda-Wiedenbruck, Germany), Rainer Bicker (Verl, Germany), Magnus Kortenjann (Telgte, Germany), Markus Drucker (Gutersloh, Germany), Steffen Lasner (Borgholzhausen, Germany), Dirk Sieding (Lunen, Germany) and Marcel Zielke (Ennigerloh, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A detergent activation method for a cleaning appliance having a rotatable non-ribbed drum for holding the textiles) and ...