ALEXANDRIA, Va., March 26 -- United States Patent no. 12,256,778, issued on March 25, was assigned to Altria Client Services LLC (Richmond, Va.).

"Aerosol-generating device with sealed compartment" was invented by Michel Bessant (Carouge, Switzerland), Laurent Golay (La Tour-de-Peilz, Switzerland), Omer Kesici (Renens, Switzerland), Nikolaus Martin Ernest Wilhelm Ricketts (Geneva), Laurent Seydoux (Gillarens, Switzerland) and Alain Tabasso (Essertines-sur-Yverdon, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aerosol-generating device may include a housing defining at least one internal compartment. The housing may be waterproof. The aerosol-generating device may further include a power suppl...