ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,301, issued on March 11, was assigned to HERAEUS DEUTSCHLAND GMBH & Co. KG (Hanau, Germany).

"Catalyst for oxygen generation reaction during water electrolysis" was invented by Martina Kemmer (Hanau, Germany) and Christian Gebauer (Hanau, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for preparing a catalyst composition, wherein in an aqueous medium containing an iridium compound, at a pH 9, an iridium-containing solid is deposited on a support material, and the support material loaded with the iridium-containing solid is separated from the aqueous medium and dried, wherein, in the method, the support mate...