US Patent Issued to Purafil on April 7 for "Solid filtration medium incorporating polyacrylamide powder and carbon" (Georgia Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,522, issued on April 7, was assigned to Purafil Inc. (Doraville, Ga.).

"Solid filtration medium incorporating polyacrylamide powder and carbon" was invented by William G. England (Doraville, Ga.) and Jayraj Nayan Joshi (Brookhaven, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a an adsorbent and/or absorbent composition, a method of preparing the adsorbent and/or absorbent composition, and method of treating a fluid stream with the adsorbent and/or absorbent composition. Alumina and carbon are combined with polyacrylamide (PAM) powder and water in preferred proportions and impregnates such as Group 1A metal hydroxides. Group...