ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,414,999, issued on Sept. 16, was assigned to PRESIDENT AND FELLOWS OF HARVARD COLLEGE (Cambridge, Mass.) and The Regents of the University of California (Oakland, Calif.).

"Compositions and methods relating to macrophages and/or monocytes with adhered particles" was invented by Samir Mitragotri (Lexington, Mass.), Michael Andrew Evans (Cambridge, Mass.) and Charles Wyatt Shields IV (Longmont, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein are polymeric particles and compositions (i.e., "backpacks") that can adhere to cells and provide delivery of payload immunomodulatory agents to those cells. For examples, the particles can adher...