ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,164, issued on March 17, was assigned to INSTITUT PASTEUR (Paris) and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (Paris).

"Imidazopyrazine derivatives, process for preparation thereof, and their uses as luciferins" was invented by Yves-Louis Janin (Paris), Eloi Paul Coutant (Montrouge, France), Vincent Hervin (Le Perreux-sur-marne, France), Glwadys Gagnot (Paris), Yves Jacob (Maintenon, France), Sophie Goyard (Paris) and Thierry Rose (Paris).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is in the field of bioluminescence in biology and/or medicine. In particular, the invention provides imidazopyrazine derivatives, processes ...