ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,780,696, issued on Nov. 3, was assigned to Guard Products LLC (Madisonville, Tenn.).

"Devices, methods, and compositions for treating grease traps" was invented by James Westlund (Athens, Tenn.), Gary Westlund (Farragut, Tenn.) and Ger McCloskey (Kyle, Ireland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various implementations include a screening device for placement in a sink basin. The device includes a first filter frame, a second filter frame, and a filter. The first filter frame includes a first plurality of openings. Each opening of the first plurality of openings has a first opening largest dimension. The first opening largest dimension is 40 m...