US Patent Issued to STRIDE on Oct. 7 for "Cross-linked polymeric ammonium salts and their use in absorbing organic contaminants" (Delaware Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,222, issued on Oct. 7, was assigned to STRIDE (New Castle, Del.).

"Cross-linked polymeric ammonium salts and their use in absorbing organic contaminants" was invented by Seetha M. Coleman-Kammula (Newark, Del.), Garret D. Figuly (Wilmington, Del.), Charles R. Powley (Wilmington, Del.) and Debora Flanagan Massouda (Wilmington, Del.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Use of poly(alkylamine)-derived (PAD) self-supported cross-linked polymeric ammonium salts and ionomer hydrogels for adsorbing and desorbing organic contaminants, specifically per and polyfluoro alkyl substances (PFAS) from water."

The patent was filed on Feb. 6, 2023, under A...