ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,533, issued on May 26, was assigned to STAR LIBERTY LLC (Carlsbad, Calif.).
"Layered absorbent substrate incorporating activated carbon and superabsorbent materials" was invented by Gregg R. Short (Carlsbad, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Example waste disposal substrates include multiple nonwoven layers comprising activated carbon, superabsorbent particles, and optionally fibers. The substrate may comprise from two to eight nonwoven layers, including at least one layer containing activated carbon in combination with fibers and at least one layer containing activated carbon without fibers. At least one layer may contain a mixtu...