ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,532,813, issued on Jan. 27, was assigned to Dinotooth Cutter LLC (Glencoe, Okla.).
"Tree saw" was invented by Bernard Luttmer (Glencoe, Okla.) and Kelly Coover (Galesburg, Kan.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A blade has a flat body with a first side, a second side, an aperture extending between the first side and the second side, and an outer peripheral edge. The aperture has a central axis defining an axis of rotation. A plurality of teeth is formed along a portion of the outer peripheral edge forming a cutting edge. Each of the teeth has a tip that is a radial outermost part of the flat body in a plane defined by the tip and the centra...