ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,791, issued on Feb. 17, was assigned to SYENSQO SPECIALTY POLYMERS ITALY S.p.A. (Bollate, Italy).

"Polyamic acid derivatives binder for lithium ion battery" was invented by Maurizio Biso (Milan), Ricardo Rino Pieri (Milan), Eduardo Soriano (Alpharetta, Ga.), Kermit S. Kwan (Cumming, Ga.) and Stefano Mauri (Giussano, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "Lithiated polyamic acid derivatives used as binders in electrodes for lithium ion batteries are provided. A water-soluble aromatic polyamic-acid derivative (polymer (P-A)) includes at least 50% by moles of recurring units (L), the recurring units (L) having at least one acid moiety in ...