US Patent Issued to HENKEL on Aug. 4 for "N-substituted 2-(6-hydroxy-3-oxo-3H-xanthene-9-yl)benzamides as photoactivators in detergents" (German Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,456, issued on Aug. 4, was assigned to HENKEL AG & Co. KGAA (Dusseldorf, Germany).

"N-substituted 2-(6-hydroxy-3-oxo-3H-xanthene-9-yl)benzamides as photoactivators in detergents" was invented by Christian Kropf (Hilden, Germany) and Nadia Ledermann (Duisburg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "N-substituted 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl) benzamides are capable of generating bleach-active species when irradiated with visible light, these species leading to an enhanced bleaching power during the washing of textiles."

The patent was filed on Nov. 23, 2022, under Application No. 18/290,542.

*For further information, including i...