US Patent Issued to Alliance for Sustainable Energy on May 20 for "Cellulose-containing filtration materials and methods of making the same" (Colorado Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,972, issued on May 20, was assigned to Alliance for Sustainable Energy LLC (Golden, Colo.).

"Cellulose-containing filtration materials and methods of making the same" was invented by Peter N. Ciesielski (Arvada, Colo.), Michael E. Himmel (Littleton, Colo.) and Todd Brian Vinzant (Elizabeth, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a composition that includes a base layer having an outer surface and a first thickness and a material that includes a plurality of cellulose nanofibers in physical contact with the outer surface, where the composition has an average filtration efficiency of less than or equal t...