ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,334, issued on Oct. 7, was assigned to JUUL Labs Inc. (Washington).

"Fuel cell powered vaporizer device" was invented by Jie Guan (Morgan Hill, Calif.), Val Valentine (San Francisco) and Qingcheng Zeng (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vaporizer device includes a fuel cell disposed with a device body and configured to receive a cartridge having a first compartment that holds a vaporizable material, a second compartment that holds a fuel, a heating element, and a wicking element that can draw the vaporizable material to the heating element to be vaporized. The vaporizer cartridge is configured for fluidically, thermall...