ALEXANDRIA, Va., May 5 -- United States Patent no. 12,616,175, issued on May 5, was assigned to Spectrum Brands Inc. (Middleton, Wis.).

"Aquarium system having improved flow controller and methods of use" was invented by William Nathan Brunner (Middleton, Wis.) and William D. Himes (Middleton, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A flow control arrangement for use with a pump in an aquarium includes a main body having an inlet flow conduit and an outlet flow conduit. The main body has a cylindrical wall having first and second opposite open ends and defining an open interior; and a through hole extending through the wall to the open interior. A flow control dial closes the first open end; and ...