ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,366, issued on May 26, was assigned to Ecole Nationale Superieure de Chimie de Paris (Paris) and University of Zurich (Zurich).

"Ruthenium (II) complexes and conjugates thereof for use as photosensitizer agent in photodynamic therapy" was invented by Gilles Albert Gasser (Paris), Franz Heinemann (Erlenbach, Germany), Malay Patra (Mumbai, India), Marta Jakubaszek (Dlugopole Zdroj, Poland), Chloe Subecz (Arceuil, France) and Johannes Karges (Eichenzell, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a compound of the following formula (I): or a pharmaceutically acceptable salt and/or solvate thereof, for use as ...