ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,708, issued on July 1, was assigned to President and Fellows of Harvard College (Cambridge, Mass.).

"Microfluidic determination of immune and other cells" was invented by David A. Weitz (Cambridge, Mass.), Li Sun (Cambridge, Mass.) and John Heyman (Cambridge, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention generally relates to fluidic droplets and systems and methods for determining immune or other cells. Some aspects of the invention are generally directed to assays that combine sensitive detection of secreted products with detection of target cell death in droplets containing an effector cell, systems and methods to isola...