ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,189, issued on June 17, was assigned to NICOVENTURES TRADING Ltd. (London).
"Method of making a tobacco extract" was invented by Helena Digard (London), Geoff Foss-Smith (London) and Francis Cheung (London).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments described herein include a method of making a tobacco extract involving two sets of supercritical conditions for extraction and subcritical conditions for separation. Also described herein are a tobacco extract obtainable by such methods, a smoking article containing such a tobacco extract, a cartridge for a smoking article containing such an extract and use of such a tobacco extract to ge...