ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,234,165, issued on Feb. 25, was assigned to FPInnovations (Pointe-Claire, Canada) and LAKEHEAD UNIVERSITY (Thunder Bay, Canada).

"Process for producing cationic lignin copolymer under aqueous acid conditions" was invented by Pedram Fatehi (Thunder Bay, Canada), Shoujuan Wang (Jinan, China), Jacquelyn Price (Port Burwell, Canada), Naceur Jemaa (Pointe-Claire, Canada), Talat Mahmood (Kirkland, Canada) and Michael Paleologou (Beaconsfield, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A water-based process was developed for the synthesis of aminated lignin copolymers with high MW, thermal stability and solubility in water over a wide range of p H v...