US Patent Issued to CALGON CARBON on Nov. 25 for "Perfluoroalkyl and polyfluoroalkyl sorbent materials and methods of use" (Pennsylvania Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,948, issued on Nov. 25, was assigned to CALGON CARBON Corp. (Moon Township, Pa.).

"Perfluoroalkyl and polyfluoroalkyl sorbent materials and methods of use" was invented by Rebecca L. Distefano (Oakdale, Pa.) and Richard A. Mimna (Oakdale, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Sorbent materials that are treated with ions, salts, oxides, hydroxides, or carbonates of calcium, magnesium, strontium, or barium are useful in removing perfluoroalkyl and polyfluoroalkyl substances (PFAS), perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), 2,3,3,3,-tetrafluoro-2-(heptafluoropropoxy)propanoate and heptafluoropropyl 1,2,2,2-tetrafl...