ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,013, issued on April 22, was assigned to ICU Medical Inc. (San Clemente, Calif.).

"Pressure-regulating vial adaptors" was invented by Thomas F. Fangrow (Mission Viejo, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In certain embodiments, a vial adaptor comprises a housing configured to couple the adaptor with a vial, an access channel, a regulator channel, and a regulator assembly. The access channel is configured to facilitate withdrawal of fluid from the vial when the adaptor is coupled to the vial. The regulator channel is configured to facilitate a flow of a regulating fluid from the regulator assembly to compensate for changes in volume ...