ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,130, issued on April 15, was assigned to IOTCO (Liege, Belgium).

"Autonomous dispensing device" was invented by Pierre L'Hoest (Liege, Belgium) and Sebastien Dawans (Liege, Belgium).

According to the abstract* released by the U.S. Patent & Trademark Office: "A floating and energy-autonomous device (1) configured to dispense a solid compound (2) into a volume (3v) of liquid. The device (1) includes a reservoir (9) of solid compound (2), and a pump (13) configured to generate a circulating flow of the liquid (3) coining from the volume (3v) of liquid and passing through the reservoir (9) before returning to the volume (3v) of liquid. The device (1) includes a sensor (17) configured ...