ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,351, issued on Dec. 9, was assigned to Vaxxas Pty Ltd. (Sydney).

"Delivery device" was invented by Mark Anthony Fernance Kendall (Chelmer, Australia), Stefano Meliga (West End, Australia), Alexandra Christina Isabelle Depelsenaire (Yeerongpilly, Australia), Michael Lawrence Crichton (Auchenflower, Australia) and Christopher Flaim (Kenmore, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device for delivery of material to a biological subject, the device including a base and a number of projections extending from the base, each projection including a tip for penetrating tissue of the biological subject, at least a portion of at least one of...