ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,889, issued on May 6.

"Systems, methods, apparatuses, and devices for cleaning an open body" was invented by Kenneth A. Kopf (Greensboro, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device includes a left stand, a right stand, a first net and a second net. Each of the left and right stands includes a longitudinal pole and a lateral pole, with a lower end of the longitudinal pole connected to the lateral pole. The first net is connected to lower portions of the longitudinal poles of the left and right stands, and the second net is connected to the lateral poles of the left and right stands. When the device is in use, the first net has a low...