ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,203, issued on March 17, was assigned to BASF SE (Ludwigshafen Am Rhein, Germany).

"Solution of tempo-derivatives for use as electrolyte in redox-flow cells" was invented by Rainer Klopsch (Ludwigshafen am Rhein, Germany), Peter Oechsle (Ludwigshafen am Rhein, Germany), Harald Winsel (Ludwigshafen am Rhein, Germany), Alexander Michael Haydl (Ludwigshafen am Rhein, Germany), Joaquim Henrique Teles (Ludwigshafen am Rhein, Germany), Johann-Peter Melder (Ludwigshafen am Rhein, Germany), Jan-Dirk Arndt (Ludwigshafen am Rhein, Germany), Olaf Kriha (Ludwigshafen am Rhein, Germany) and Alexandre Guthertz (Ludwigshafen am Rhein, Germany).

According to the abstract* released by the U.S. P...