ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,031, issued on April 21, was assigned to The Libman Co. (Arcola, Ill.).

"Mop system with rotating mop head" was invented by Andrew D. Libman (Champaign, Ill.), Aaron Libman (Champaign, Ill.), Jon Franklin (St. Joseph, Ill.), Marco Bizzotto (Padua, Italy), Carlos Aguiar (Burgo, Portugal) and Fernando de Jesus Santos (Maceira LRA, Portugal).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spin mop and bucket system to assist in dewatering a mop is disclosed. The spin mop may have a handle assembly slidably connected with a spiral member, and a mop head that is attached to the spiral member. When the handle assembly moves along the spiral member, the s...