ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,443, issued on May 27, was assigned to Evonik Operations GmbH (Essen, Germany).
"Polymeric anion-conducting membrane" was invented by Oliver Conradi (Dusseldorf, Germany), Artjom Maljusch (Bochum, Germany), Harald Rogl (Wallern an der Trattnach, Austria) and Gianluigi Luppi (Dusseldorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides compounds, especially polymeric compounds, having preferably at least one spiro or piperidine structural unit, a process for preparation thereof and the use thereof as anion conducting membrane."
The patent was filed on July 16, 2020, under Application No. 17/629,285.
*For further...