ALEXANDRIA, Va., March 26 -- United States Patent no. 12,256,718, issued on March 25, was assigned to Koi Acres LLC (Scandia, Minn.).
"Systems and methods for treatment and filtration of water" was invented by Mike Swanson (Scandia, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A water treatment system for a water reservoir comprises a collection box; a rotary drum filter arranged to receive gravity flow from the collection box through a receiving line; a primary bio-filter; a secondary bio-filter; one or more connecting lines originating at the rotary drum filter and comprising at least a first outlet line connected to the primary bio-filter and a second outlet line connected to the secondary bio-fil...