ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,225,931, issued on Feb. 18, was assigned to Fontem Ventures B.V. (Amsterdam).

"Electronic smoking device with refillable liquid reservoir" was invented by Stefan Biel (Hamburd, Germany) and Andreas Beer (Grasbrunn, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic smoking device (10) includes a power supply portion (12) comprising a power supply (18) as well as an atomizer/liquid reservoir portion (14) comprising a refillable liquid reservoir (34) adapted for storing a liquid, and an atomizer (26) operable when connected to the power supply (18) to atomize liquid stored in the liquid reservoir (34). The atomizer/liquid reservoir porti...