ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,471,637, issued on Nov. 18, was assigned to ALTRIA CLIENT SERVICES LLC (Richmond, Va.).
"Electronic smoke apparatus" was invented by Loi Ying Liu (Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic smoke comprises a puff detection sub-assembly module. The puff detection sub-assembly comprises a first conductive surface, a second conductive surface and an insulated ring spacer separating the first and the second conductive surfaces at an effective separation distance. The first conductive surface, the second conductive surface and the insulated ring spacer are housed inside a metallic can. The first conductive surface is electrically ...