ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,146, issued on Oct. 14, was assigned to ALTOP PATENTS II B.V. (Beek, Netherlands).
"Method and device for controlling the water level in ground" was invented by Sam Speijers (Middelaar, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of controlling the water level in ground in which drainage pipes have been laid, said method comprising: a) providing the ground with water passing through the drainage pipes in a natural way and/or by active intervention using a control system, b) creating an underpressure or overpressure of water and/or air in the drainage pipes by means of the control system, thereby causing water or air to be ext...