ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,719, issued on Jan. 27, was assigned to MATSUI CONSULTING FIRM Co. LTD. (Kyoto, Japan).

"Method for manufacturing useful products containing carbonized solids by treating organic wastes containing heavy metals" was invented by Saburo Matsui (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "[Problem] To provide a method for producing useful substances, which converts organic waste containing heavy metals into harmless substances such as fertilizers and soil conditioners by carbonizing organic matter while detoxifying heavy metals.[Solution] The present invention is a method for producing a useful material, said method comprising treating a...