ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,464,991, issued on Nov. 11, was assigned to Komet Austria GmbH (Lienz, Austria).

"System for regulating the flow rate of a liquid and corresponding regulation method" was invented by Arno Drechsel (Lienz, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for intelligent regulation of the flow rate in an irrigation plant includes a pipeline feeding an irrigation liquid, a drop pipe connected to the pipeline, and a regulation device connected to the drop pipe and associated with a liquid distribution device having a continuous regulating valve and a local electronic control unit that varies pressure and flow rate of the liquid sent to a nozz...