ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,395, issued on Aug. 11, was assigned to SimpleSUB Water (Wheat Ridge, Colo.).

"Water metering device and methods for water consumption apportionment" was invented by Bradley W. Alcorn (Arvada, Colo.), Devin Callahan (Denver) and Mark Clark (Denver).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for determining fluid consumption that includes: detecting, by a fluid meter mounted on an exterior of a pipe containing fluid, a first time of flight between a first ultrasonic transducer and a second ultrasonic transducer; detecting, by the fluid meter, a second time of flight between the second ultrasonic transducer and the first ultrasonic transdu...