ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,679, issued on April 7, was assigned to Amtek Research International LLC (Lebanon, Ore.).
"Friction enhancing core surface of battery separator roll and related methods" was invented by Richard W. Pekala (Corvallis, Ore.) and Jennifer Stock (Lebanon, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Rolls of battery separator material and related methods are disclosed. A roll of battery separator material includes a core including an outside surface, a separator material rolled around the core, and a friction enhancing surface on at least a portion of the outside surface of the core to prevent the separator material from lateral migration relative...