ALEXANDRIA, Va., June 25 -- United States Patent no. 12,336,572, issued on June 24, was assigned to Altria Client Services LLC (Richmond, Va.).

"Nicotine electronic vaping device" was invented by Raymond W. Lau (Glen Allen, Va.), Eric Hawes (Glen Allen, Va.) and Loi Ying Liu (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat nicotine pre-vapor formulation. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive in...