ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,247, issued on Sept. 23, was assigned to Yoko Mouri (Tokyo).

"Waste treatment apparatus with adjustable angle stirring blades" was invented by Yoko Mouri (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A waste treatment apparatus includes: a body having a spherical shape and configured to accommodate a waste therein; and a stirring unit configured to stir the waste accommodated in the body. The stirring unit includes: a main shaft horizontally and rotatably disposed at a center portion in the inside of the body; a plurality of main shaft stirring blades having a flat plate shape, the plurality of main shaft stirring blades mounted on a surfac...