US Patent Issued to RHODIA OPERATIONS, CHEMETALL on May 27 for "Method for treating surfaces of aluminum containing substrates" (French, German Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,693, issued on May 27, was assigned to RHODIA OPERATIONS (Aubervilliers, France) and CHEMETALL GMBH (Frankfurt, Germany).

"Method for treating surfaces of aluminum containing substrates" was invented by Lars Sebralla (Frankfurt am Main, Germany), Nawel Souad Khelfallah (Frankfurt am Main, Germany), Axel Schoene (Frankfurt am Main, Germany), Marie-Pierre Labeau (Sevres, France) and Guillaume Gody (Rueil-Malmaison, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a method for treatment of at least one surface of a substrate at least partially made of aluminum and/or an aluminum alloy, including at least a step of contacting th...