ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,630, issued on Aug. 19, was assigned to Syngenta Crop Protection AG (Basel, Switzerland).
"Fertilizer pouch" was invented by Matthew Blanchard (Gilroy, Calif.) and James Lloyd Gibson (Gilroy, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to methods and compositions for a fertilizer pouch comprised of hot water soluble polyvinyl alcohol. Methods and compositions for reducing leached nutrients are also provided including but not limited to: Iron, Manganese, Copper, Bicarbonate, Zinc, Phosphorus, Molybdenum, Ammonia, Nitrogen, Calcium, Potassium, Sulfate, Magnesium, Sodium, Chloride, Inorganic Nitrogen, and Total N...