ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,116, issued on Nov. 11, was assigned to 3R-CYCLE OY (Hyvinkaa, Finland).

"Method and device for recovering metal by leaching" was invented by Tero Rinne (Vaasa, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a method for recovering metal from metal-containing waste material by leaching, the method comprising providing aqueous solution (14), providing leaching agent precursor, providing a source of external energy (10), treating the aqueous solution (14) with the external energy (10) to form reactive species, reacting the leaching agent precursor with the reactive species to form a leaching agent and to obtain ...