ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,740, issued on July 8, was assigned to Precision Planting LLC (Tremont, Ill.).
"Soil analysis compositions and methods" was invented by Richard Petroski (Tremont, Ill.) and Rachel Nelson (Tremont, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a method of analyzing nutrient content in soil, the method comprising a) obtaining a soil sample, b) adding a liquid to the soil sample to form a soil slurry, c) flowing the soil slurry through a filter, whereby the filter is oriented such that the soil slurry flows downward through the filter at least partially under the effects of gravity, d) blending a reagent composition with the so...