ALEXANDRIA, Va., March 31 -- United States Patent no. 12,588,749, issued on March 31.

"Pool cleaning device" was invented by Henrik Manassarians (Del Mar, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pool cleaning device for cleaning pools includes a tubular wand having a brush portion and a battery portion. The tubular wand incudes a first shaft telescopically coupled within a second shaft. A battery housing is affixed to the battery portion and a power source is positioned within the battery housing. A motor housing is pivotably attached to the brush portion such that the motor housing is movable between an upwardly angled position and a downwardly angled position. A motor is positioned within t...