ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,426,765, issued on Sept. 30.

"Mop bucket with clean and dirty water separation" was invented by Jian Jiang (Lanxi, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mop bucket with clean and dirty water separation, comprising an outer bucket. A partition is arranged inside the outer bucket, and a clean water area and a dirty water area are respectively located on both sides of the partition in the outer bucket; a tub and a reciprocating pump driven by the tub capable of delivering water into the tub are arranged in the outer bucket, a valve assembly is arranged at a bottom of the tub to discharge water in the tub to the dirty water area, and the v...