ALEXANDRIA, Va., April 15 -- United States Patent no. 12,599,851, issued on April 14, was assigned to Life Technologies Corp. (Carlsbad, Calif.).

"Multi-column chromatography systems with rotatable valve assemblies" was invented by John Paul Greenwood (Carlsbad, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A chromatography system includes a first chromatography column and a panel having a top face and an opposing bottom face, a first cavity being formed on the panel so as to pass through the top face and be encircled by an inner surface. The panel bounds an inlet fluid channel having an end terminating at an inlet opening formed on the inner surface encircling the first cavity so that the inlet flui...