ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,886, issued on Sept. 15, was assigned to URBAN WATER RETENTION APS (Helsinge, Denmark).

"Module system for an underground stormwater retention basin, parts for such module system and stormwater retention basin and methods of building such stormwater retention basin" was invented by Lars Rikki Knudsen (Tisvildeleje, Denmark), Christian Rosenvinge (Hillerod, Denmark), Benny Frank Jensen (Roskilde, Denmark) and Andy Hoang (Gentofte, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "A module system for use as an underground stormwater retention basin, where the module system parts consist of a plurality of watertight three-dimensional units such a...