ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,221, issued on May 12, was assigned to The Regents of the University of California (Oakland, Calif.).

"Object delivery systems and related methods" was invented by Todd Squires (Santa Barbara, Calif.) and Huanshu Tan (Santa Barbara, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments include an object delivery system that may include a solute selected to diffuse through at least a portion of a porous material to a target and to associate with the target to form a source beacon capable of generating a solute outflux; and an object to be delivered to the target, wherein the solute outflux causes the object to migrate towards the target. E...