ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,669, issued on June 30, was assigned to kaleo Inc. (Glen Allen, Va.).

"Auto-injectors for administration of a medicament within a prefilled syringe" was invented by Eric S. Edwards (Moseley, Va.), Evan T. Edwards (Charlottesville, Va.) and Paul F. Meyers (Fishers, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus includes a housing, a carrier, and an expandable assembly. The housing defines an opening configured to selectively place a gas chamber of the housing in fluid communication with an exterior volume. The carrier is movably disposed within the housing and is coupled to a medicament container. A proximal surface of the carrier d...