ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,450, issued on Dec. 9, was assigned to GLOBAL MORPHO PHARMA (La Chapelle-sur-Erdre, France).

"Method for separating lutetium and ytterbium using chromatography" was invented by Evgeniy Anatolevich Kozlitin (Lyuberetskiy, Russia), Vitaliy Vitalevich Milyutin (Moscow), Lyubov Aleksandrovna Firsova (Moscow), Oleg Viktorovich Haritonov (Moscow) and Mihail Vasilevich Logunov (G. Ozersk, Russia).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to the field of separating rare earth elements by chromatography. The claimed method for separating lutetium and ytterbium from acidic solutions resulting from the recycling of irradiated ytterbium...