ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,650, issued on June 23, was assigned to Aridica Corp. (Boulder, Colo.).

"PBMC separation systems and methods of use" was invented by Sergey Gershtein (Skillman, N.J.), Charles Robertson (Summit, N.J.) and Chockalingam Palaniappan (Highlands Ranch, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides cartridges, systems and methods for the separation of a PBMC fraction from a blood sample. The cartridge comprises a valve which is configured to be actuated by physical or magnetic force. The system comprises a rotor for rotating a cartridge and an actuator to operate a valve. A sensor may be provided in the system to provide feed...