ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,375, issued on March 11, was assigned to Neoperl GmbH (Mullheim, Germany).

"Sanitary drain unit" was invented by Dietmar Walser (Efringen-Kirchen, Germany) and Holger Schurle (Mullheim, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sanitary outflow unit (1) to be used in a water dispensing device (20), having a water supply (3) and a water outlet (4), which sanitary outflow unit includes at least one holding element (11) that can be switched between a release position and a holding position, wherein, in the holding position, a peripheral contour (18) of the sanitary outflow unit (1) is enlarged by the holding element (11). The holding el...