ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,690, issued on Jan. 13, was assigned to BASF SE (Ludwigshafen Am Rhein, Germany).
"Phosgene production unit" was invented by Gerhard Olbert (Ludwigshafen am Rhein, Germany), Stefan Engels (Ludwigshafen am Rhein, Germany) and Jan Pablo Josch (Ludwigshafen am Rhein, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A unit for producing and processing phosgene, said unit being configured for at least one maintenance mode and at least one production mode and comprising a structure which defines a confined space in a production mode, said confined space being sub-divided into at least two sub-spaces, wherein (i) at least one sub-space contains at le...